Schamberg disease ( progressive pigmented purpura) Schamberg disease is the most common type of capillaritis. Regular or irregular crops of red-brown flat patches with cayenne pepper spots on their borders appear for no apparent reason. Although most common on the lower legs, the Schamberg form of capillaritis can arise on any part of the body. Nummular dermatitis (or eczema) is also known as discoid eczema (or dermatitis). It has two forms: Exudative (‘wet’) nummular dermatitis. Dry nummular dermatitis. Exudative nummular dermatitis. The exudative variant starts acutely and may persist for weeks, months and rarely years. Although it may arise at any age, most subjects are over 50 ...Cutaneous signs in dermatology are pathognomonic or diagnostic for certain conditions. A knowledge of these signs is a useful skill, which must not be forgotten in the recent trend …A medium congenital melanocytic naevi is 1.5–19.9 cm. A large or giant congenital melanocytic naevus is ≥ 20 cm in diameter. A modification of the above criteria is used in some centres [2] in an effort to increase the accuracy of classification. Small congenital melanocytic naevi are < 1.5 cm in diameter.Browse over 20,000 clinical dermatology images from DermNet, a leading online resource for skin health information. You can use the watermarked images for free, or buy the non …Psoriasis is a multifactorial systemic disease including inflammation and epidermal hyperproliferation. Nail psoriasis can involve the nail bed, nail matrix, hyponychium, and nail folds. Theories include: Activation of the antimicrobial peptide LL-37 by Candida and the cytokine overflow theory. Increased expression of interleukin (IL)-10 in the ...Melanoma in situ is an early form of primary melanoma in which the malignant cells are confined to the tissue of origin, the epidermis. It is also known as in-situ melanoma and level 1 melanoma. As melanoma in situ has no associated mortality, early detection of melanoma in an in-situ phase increases survival from …Low level laser therapy is a safe form of light/heat treatment under investigation for a variety of health indications. It is being used to treat the genetic forms of hair loss common in men and women, androgenetic alopecia or pattern balding. Low level laser therapy is also called red light therapy, cold laser, soft laser, biostimulation …Piedra is a fungal infection of the hair, characterised by the deposition of small black or white nodules along the hair shaft. These look like small stones, hence the name piedra, meaning ‘stone’ in Spanish. Piedra is also known as Trichomycosis nodosa or Trichomycosis nodularis. There are two types: black piedra and white piedra, … By definition, dermographism appearing at least 30 minutes after stroking. It may be described after a typical weal of immediate dermographism comes and goes, 3–6 hours later a wide weal reappears without a flare at the same site and persists for up to 48 hours. Associated with burning and tenderness of the weal. Jan 31, 2019 · 17.8% were aged 50-59. 23.9% were aged 60-69. 23.7% were aged 70-79. 16% were aged 80 or older. The mean age for melanoma diagnosis is 65.7 years among men and 62.4 years among women. Melanoma is the most common cancer diagnosed in young Australians aged 15–29 years, accounting for 15% of all cancers in this age group. Skin as a barrier. Skin is the largest organ of the human body and comprises three major layers; epidermis, dermis, and subcutis [see Structure of normal skin]. One vital function of the skin is to form an effective barrier between the organism and the environment. It maintains an ‘inside-outside’ barrier regulating water loss, and an …Treatment for acne depends on the patient's age and sex, the extent and the severity of the acne, how long it has been present, and response to previous treatments. Treatment for mild acne includes topical anti-acne preparations, lasers and lights. Treatment for moderate acne includes antibiotics such as tetracyclines and/or … Keratoacanthoma (KA) is a common, rapidly growing, locally destructive skin tumour . KAs may regress spontaneously with scarring, but clinically they may be indistinguishable from well- differentiated squamous cell carcinoma (SCC) and the clinical course may be unpredictable. Thus, many clinicians and pathologists prefer the term SCC, KA-type ... Piedra is a fungal infection of the hair, characterised by the deposition of small black or white nodules along the hair shaft. These look like small stones, hence the name piedra, meaning ‘stone’ in Spanish. Piedra is also known as Trichomycosis nodosa or Trichomycosis nodularis. There are two types: black piedra and white piedra, … Athlete's foot is a term often used to describe a fungal infection (or dermatophytosis) of the foot ( tinea pedis ). It most often results in peeling skin and fissuring between the toes (the toe clefts ). The cleft between the fourth and fifth toes is the most frequently affected. Fungal infection is not the only reason for peeling and ... Seborrhoeic dermatitis is a common, chronic, or relapsing form of eczema /dermatitis that mainly affects the sebaceous gland -rich regions of the scalp, face, and trunk. There are infantile and adult forms of seborrhoeic dermatitis. This benign inflammatory condition is sometimes associated with psoriasis and is known as sebopsoriasis. Scabies is a transmissible skin disease caused by the ectoparasitic mite Sarcoptes scabiei var. hominis. This variant infests humans only; scabies cannot be caught or transferred to other animals. Scabies is a highly contagious infestation of the human epidermis. Scabies was described by Aristotle who likened the disease to lice of the flesh.Dec 31, 2019 · Trichoscopy involves examination of the scalp and hair using a handheld or a videodermoscopy device. Examination with a dermatoscope (trichoscope) can reassure patients that they have received a thorough scalp examination and provide the clinician with invaluable in vivo information about scalp and hair shaft pathology.About DermNet. DermNet is the world’s leading free dermatology resource. DermNet is created for healthcare professionals to serve as a comprehensive database of skin conditions. Nearly everyone will experience a skin issue at some point in their lives and having a trustworthy, independent, easily accessible source of information is important ...A to Z image directory of skin conditions from DermNet. Search through our comprehensive picture galleries on a variety of skin diseases. DermNet provides Google Translate, a free machine translation service. Note that this may not provide an exact translation in all languages. Topics A-Z. Images. Cases. Jobs.It affects the superficial layers of the epidermis and is typically caused by Staphylococcus aureus and Streptococcus pyogenes (Group A beta – haemolytic streptococci (GABHS)). It can be classified into non- bullous (also known as ‘school sores’) and bullous impetigo. Ecthyma is a deep form of impetigo causing deeper …Measles vaccine induces long-term (probably life-long) immunity in most individuals. Vaccination schedules recommend a two-dose immunisation strategy; the first dose at 12–15 months of age, followed by a second dose at 4–6 years. Measles vaccine should not be given during pregnancy. Pityriasis versicolor affects the trunk, neck, and/or arms, and is uncommon on other parts of the body. The patches may be coppery brown, paler than surrounding skin, or pink. Pale patches may be more common in darker skin; this appearance is known as pityriasis versicolor alba. Sometimes the patches start scaly and brown, and then resolve ... Treatment for acne depends on the patient's age and sex, the extent and the severity of the acne, how long it has been present, and response to previous treatments. Treatment for mild acne includes topical anti-acne preparations, lasers and lights. Treatment for moderate acne includes antibiotics such as tetracyclines and/or …Definition. Dermatology is the medical discipline that is concerned with the diagnosis and treatment of diseases of the skin, hair, and nails in both children and adults. Specialists in dermatology are called dermatologists.. The New Zealand Dermatological Society’s definition is comprehensive: “Dermatology involves but is not limited to study, research, …Omalizumab is a humanised monoclonal antibody ( biological treatment) that binds to circulating immunoglobulin E ( IgE) and reduces the release of inflammatory mediators from mast cells and basophils. In New Zealand, it is currently (as of 2020) licensed as an add-on therapy for patients with severe, persistent allergic asthma and for patients ...Anywhere on the skin, sometimes on mucous membranes. Angiokeratoma of Fordyce. Common, male predominance, increases with age. Found on scrotum and vulva. Angiokeratoma of Mibelli. Rare, appears in childhood. Multiple warty purple papules; acral, elbows, knees, breast. Angiokeratoma circumscriptum. Rare vascular birthmark, female … Dermatomal — lesions confined to one or more segments of skin innervated by a single spinal nerve ( dermatomes ). Extensor — involving extensor surfaces of limbs. Contrast with flexor surfaces. Flexural — related to flexion, or skin folds, such as the backs of knees, the armpits, the elbow creases and the groin. Inflammatory skin conditions. Chondrodermatitis nodularis helicis. Otitis externa. Contact allergic dermatitis to nickel. Chilblains. Juvenile spring eruption. Cutaneous lupus erythematosus. Relapsing polychondritis. Scalp psoriasis, atopic dermatitis and seborrhoeic dermatitis frequently affect the skin fold behind the ear. Pityriasis versicolor affects the trunk, neck, and/or arms, and is uncommon on other parts of the body. The patches may be coppery brown, paler than surrounding skin, or pink. Pale patches may be more common in darker skin; this appearance is known as pityriasis versicolor alba. Sometimes the patches start scaly and brown, and then resolve ... Sydenham chorea – This is a disorder of the nervous system characterised by personality changes, muscle weakness, and involuntary movements. Erythema marginatum rheumaticum – This is a characteristic type of annular erythema that occurs in about 10% of first attacks of ARF in children; it is very rare in adults. Scalp psoriasis is a skin condition characterised by red, thickened, well- demarcated patches or plaques with overlying silvery-white scales, affecting part or all of the scalp. It can be contained within the hairline, though frequently affects the back of the head, or extends onto the forehead ( facial psoriasis ), ears, or neck. Skin cancers are malignant tumours in which there is an uncontrolled proliferation of any one of the many skin cell types, whereas the normal process of regeneration of skin involves replication of the cells in a controlled fashion. Each subtype of skin cancer has unique characteristics. The most common forms of skin cancer are: … Image catalogue. The catalogue lists directories of some of the images available for licensed use by external agencies. If you don't find what you're looking for, try searching by disease or condition using DermNet's Google Custom Search, and select the "Image" tab. Refer to the DermNet Image policy for licensing requirements. Learn about atopic dermatitis, the most common inflammatory skin disease worldwide, affecting people with an atopic tendency. Find out the causes, clinical features, complications, diagnosis, and treatment of this condition.The purpose of DermNet is to provide authoritative information about skin diseases, conditions and treatments for dermatologists, students and medical researchers. The …Low level laser therapy is a safe form of light/heat treatment under investigation for a variety of health indications. It is being used to treat the genetic forms of hair loss common in men and women, androgenetic alopecia or pattern balding. Low level laser therapy is also called red light therapy, cold laser, soft laser, biostimulation and ...Melanoma in situ is an early form of primary melanoma in which the malignant cells are confined to the tissue of origin, the epidermis. It is also known as in-situ melanoma and level 1 melanoma. As melanoma in situ has no associated mortality, early detection of melanoma in an in-situ phase increases survival from melanoma and leads to less ...Squamous cell papilloma may be defined as a small benign (non-cancerous) growth that begins in squamous cells (thin, flat cells) that are found in the tissue that forms the surface of the skin ( epidermis ), the passages of the respiratory and digestive tract and in the lining of hollow organs of the body. Squamous cell papilloma is caused by ...DermNet NZ is a comprehensive online resource for skin health information. Learn about the causes, features, diagnosis, and management of different types o…The mottled appearance of cutis marmorata is caused by superficial small blood vessels in the skin dilating and contracting at the same time. Dilation creates the red colour of the skin whilst contraction produces a pale appearance. This phenomenon is most pronounced when the skin is cooled. The reasons for the reaction are not fully understood.Definition. Dermatology is the medical discipline that is concerned with the diagnosis and treatment of diseases of the skin, hair, and nails in both children and adults. Specialists in dermatology are called dermatologists.. The New Zealand Dermatological Society’s definition is comprehensive: “Dermatology involves but is not limited to study, research, …See full list on dermnetnz.org DermWeb provides links to various online image galleries of dermatological diseases and conditions. Browse by topic, area of the body, or search by keywords to find high quality …Sebaceous hyperplasia is the term used for enlarged sebaceous glands seen on the forehead or cheeks of the middle-aged and older people. Sebaceous hyperplasia appears as small yellow bumps up to 3 mm in diameter. Close inspection reveals a central hair follicle surrounded by yellowish lobules. There are often prominent blood vessels, best … · Syphilis is transmitted sexually from person to person, either by direct contact with syphilitic ulcers or by infected blood through microtrauma during sexual intercourse. Syphilis ulcers occur most commonly on the genitals and on the anal area, but can also occur on the lips or mouth. Hence, sex in any form — vaginal, anal, or oral — is ...There are many types of drug eruption, which range from a clinically mild and unnoticed rash to a severe cutaneous adverse reaction (SCAR) that may be life-threatening. The most common drug eruptions are: Morbilliform or exanthematous drug eruption. Urticaria and/or angioedema (which rarely leads to anaphylaxis ). SCARs are rare:Pityriasis lichenoides (PL) is an uncommon cutaneous rash of uncertain aetiology . The acute form, pityriasis lichenoides et varioliformis acuta (PLEVA), and the chronic form, pityriasis lichenoides chronica (PLC), sit at either end of a disease spectrum with many patients showing overlapping features. The eponym Mucha–Habermann disease is ...Nummular dermatitis (or eczema) is also known as discoid eczema (or dermatitis). It has two forms: Exudative (‘wet’) nummular dermatitis. Dry nummular dermatitis. Exudative nummular dermatitis. The exudative variant starts acutely and may persist for weeks, months and rarely years. Although it may arise at any age, most subjects are over 50 ...Chickenpox is a highly contagious viral infection that causes an acute fever and blistered rash, mainly in children. Chickenpox is also known as varicella. The name may be derived from the French term for chickpea, chiche pois. Another theory is that the word 'chicken' was derived from a slang term for 'child'.Contact dermatitis (also called contact eczema) refers to a group of skin disorders in which the skin reaction is due to direct contact with the causative agent. The term dermatitis implies that the outside layers of skin are affected. It can be acute (a single episode) or chronic ( persistent ). Dermatitis is nearly always itchy.What is acne? Acne is a common chronic disorder affecting the hair follicle and sebaceous gland, in which there is expansion and blockage of the follicle and inflammation.There are several variants. Who gets acne? …Nodular prurigo (NP) or prurigo nodularis is a chronic skin condition characterised by very itchy firm lumps. It can appear anywhere on the body but is most common on the arms, legs, back, and torso, in a symmetrical distribution. It is the most severe form of prurigo and thus can be difficult to treat.DermNet NZ是世界上免费的皮肤资源和权威。通过点击按钮提供可靠的信息，我们帮助成千上万的人做出明智的、基于证据的皮肤护理决定。 由新西兰支持并作出贡献 皮肤科医生 代表… 新西兰皮肤学会．Perioral vitiligo. Vitiligo of the fingers and dorsal hands - note the striking symmetry. Segmental vitiligo on one lid and the ipsilateral forehead. Segmental vitiligo on the trunk. Vitiligo over the knuckles - keobnerisation due to trauma often localises vitiligo. Small patch vitiligo over the trunk. Perioral/ periorificial dermatitis. Usually adult females using face cream, often topical corticosteroid. Often, asymmetrical first in perioral sites, later in perinasal and periocular sites. Spares a centimetre of skin around vermilion of lips. Grouped erythematous papules and pustules on erythematous patches, flaky surface. Periorificial dermatitis is a common facial skin problem characterised by groups of itchy or tender small red papules. The area around the eyes, nose, and mouth are most commonly affected, however papules may also be found on the genitals. The characteristics of facial periorificial dermatitis are as follows. · The affected skin may be red and itchy, swollen and blistered, or dry and bumpy. Some typical examples of allergic contact dermatitis include: Eczema in the skin in contact with jewellery items, due to contact allergy to nickel. Reactions to fragrances in perfumes and household items. Eczema under adhesive plaster, due to contact allergy to … Erythema multiforme is an immune-mediated, typically self-limiting, mucocutaneous condition characterised by ‘target’ lesions . Significant mucosal involvement distinguishes erythema multiforme major from multiforme minor. Episodes can be isolated, recurrent, or persistent. In most cases, erythema multiforme is precipitated by herpes ... A blistering disease is a condition in which there are fluid-filled skin lesions. Vesicles are small blisters less than 5 mm in diameter. A bulla is a larger blister. Note that the plural of bulla is bullae. Blisters may break or the roof of the blister may become detached forming an erosion. Exudation of serous fluid forms crust.Treatment for acne depends on the patient's age and sex, the extent and the severity of the acne, how long it has been present, and response to previous treatments. Treatment for mild acne includes topical anti-acne preparations, lasers and lights. Treatment for moderate acne includes antibiotics such as tetracyclines and/or …Pityriasis alba is a common skin disorder in children (90%) and young adults. It is particularly prevalent in atopics. It is characterised by one or more flaky pink patches and hypopigmentation. The patches are often found on the cheeks and upper arms and are more noticeable in darker skinned children. It is generally asymptomatic.Erythema multiforme is an immune-mediated, typically self-limiting, mucocutaneous condition characterised by ‘target’ lesions . Significant mucosal involvement distinguishes erythema multiforme major from multiforme minor. Episodes can be isolated, recurrent, or persistent. In most cases, erythema multiforme is precipitated by herpes ... Lip licker’s dermatitis is a reaction of the lips ( eczematous cheilitis) and surrounding skin ( irritant contact dermatitis) due to contact with an irritating substance — in this case, saliva from the patient’s own tongue [1,2]. Other names for lip licker's dermatitis are lip-lick cheilitis, irritant contact cheilitis due to lip-licking ... Erythema multiforme is an immune-mediated, typically self-limiting, mucocutaneous condition characterised by ‘target’ lesions . Significant mucosal involvement distinguishes erythema multiforme major from multiforme minor. Episodes can be isolated, recurrent, or persistent. In most cases, erythema multiforme is precipitated by herpes ... Link to DermNet's pages about fungal skin infections. Introduction to fungal infections; Yeast infections Candida. Candida general information; Napkin dermatitis (diaper rash) Non-albicans candida infections; Oral candidiasis (oral thrush) Vulvovaginal candidiasis (vaginal thrush) Candida intertrigo (skin fold infection) Paronychia (nail fold ... Darier disease is an autosomal dominant genetic disorder classified as a hereditary acantholytic dermatosis. Darier disease typically presents with scaly crusted papules in a seborrhoeic distribution and in skin folds. Also known as Darier–White disease, Darier disease was previously called ‘ keratosis follicularis’, but this is incorrect ... Scabies is a transmissible skin disease caused by the ectoparasitic mite Sarcoptes scabiei var. hominis. This variant infests humans only; scabies cannot be caught or transferred to other animals. Scabies is a highly contagious infestation of the human epidermis. Scabies was described by Aristotle who likened the disease to ‘lice of the flesh’.Measles vaccine induces long-term (probably life-long) immunity in most individuals. Vaccination schedules recommend a two-dose immunisation strategy; the first dose at 12–15 months of age, followed by a second dose at 4–6 years. Measles vaccine should not be given during pregnancy.Jan 31, 2019 · 17.8% were aged 50-59. 23.9% were aged 60-69. 23.7% were aged 70-79. 16% were aged 80 or older. The mean age for melanoma diagnosis is 65.7 years among men and 62.4 years among …Acrodermatitis chronica atrophicans typically presents as a unilateral violet discolouration of the extensor parts of the upper or lower limbs, especially the dorsum of the hand, elbow, instep, ankle, or knee. However, it can appear anywhere on the body and can be bilateral. ACA develops in 2 stages.Anogenital warts are an infection caused by specific human papillomavirus types, most commonly HPV types 6 and 11. Warts will usually appear three to six months after infection but they may appear months or even years later. Anogenital warts are usually a sexually transmitted infection (STI).A to Z image directory of skin conditions from DermNet. Search through our comprehensive picture galleries on a variety of skin diseases. DermNet provides Google Translate, a free machine translation service. Note that this may not provide an exact translation in all languages. Topics A-Z. Images. Cases. Jobs.Hand, foot, and mouth disease (HFMD or HFM) is a common, self-limiting, viral infection that causes blisters on the hands, feet, and inside or around the mouth. It mainly affects children under the age of 5 years. HFMD, also called enteroviral vesicular stomatitis, occurs sporadically worldwide. Epidemics are most common during warm weather ...A free 10-week quiz course looking at more advanced dermatology cases. Created by DermNet for healthcare professionals. Example quiz. This is an example of a quiz. in the … Seborrhoeic dermatitis is a common, chronic, or relapsing form of eczema /dermatitis that mainly affects the sebaceous gland -rich regions of the scalp, face, and trunk. There are infantile and adult forms of seborrhoeic dermatitis. This benign inflammatory condition is sometimes associated with psoriasis and is known as sebopsoriasis. A PASI score is a tool used to measure the severity and extent of psoriasis. PASI is an acronym for Psoriasis Area and Severity Index. Completing a PASI score takes a few minutes and experience to calculate it accurately. Link to DermNet's patient-oriented PASI score tool (PO-PASI) if you have psoriasis yourself or you are a beginner in ... · Diphenylcyclopropenone (DPCP), also known as diphencyprone, is an experimental sensitising agent used by some dermatology centres to treat skin conditions by contact immunotherapy. Diphenylcyclopropenone is most often used to treat alopecia areata. Diphenylcyclopropenone is made up in acetone.Cold urticaria is a relatively uncommon form of chronic inducible urticaria. Urticarial weals develop after being exposed to cold, cold water, and cold objects. Acquired cold urticaria is now understood to be a completely different disorder from familial cold autoinflammatory syndrome (FCAS), previously known as hereditary cold urticaria. · Infection of internal organs, including the gastrointestinal tract, lungs, and brain ( encephalitis) Herpes zoster is infectious to people who have not previously had chickenpox. Herpes zoster in the early months of pregnancy can harm the fetus, but luckily this is rare. Shingles in late pregnancy can cause chickenpox in the fetus or newborn.Seborrhoeic keratosis is a harmless warty spot that appears during adult life as a common sign of skin ageing. Some people have hundreds of them. Seborrhoeic keratosis (American spelling - seborrheic keratosis) is also called SK, basal cell papilloma, senile wart, brown wart, wisdom wart, or barnacle. The descriptive …Urticaria pigmentosa. Urticaria pigmentosa is a form of cutaneous mastocytosis in which there are brown macules and papules. Urticaria pigmentosa is mostly seen in infants and improves with age. It may also arise in adults when it tends to persist. Lesions may affect trunk and limbs, and less often scalp and face.Dermatology Quiz Course - Beginners. Click here for the advanced course. Test your knowledge on common dermatology cases. Join our beginners dermatology quiz …Dec 31, 2019 · Trichoscopy involves examination of the scalp and hair using a handheld or a videodermoscopy device. Examination with a dermatoscope (trichoscope) can reassure patients that they have received a thorough scalp examination and provide the clinician with invaluable in vivo information about scalp and hair shaft pathology.Basal cell carcinoma (BCC) is a common, locally invasive, keratinocyte cancer (also known as nonmelanoma cancer). It is the most common form of skin cancer. BCC is also known as rodent ulcer and basalioma. Patients with BCC often develop multiple primary tumours over time. Discoid eczema usually affects the limbs, particularly the legs, but the rash may be widespread. Although often bilateral, the distribution can be asymmetrical especially if related to varicose veins. Individual plaques are well circumscribed, mostly 1–3 cm in diameter, and inflamed. The majority of patches are round or oval. Keratoacanthoma (KA) is a common, rapidly growing, locally destructive skin tumour . KAs may regress spontaneously with scarring, but clinically they may be indistinguishable from well- differentiated squamous cell carcinoma (SCC) and the clinical course may be unpredictable. Thus, many clinicians and pathologists prefer the term SCC, KA-type ...DermNet is a comprehensive online resource for skin health information. Learn about psoriasis, a chronic inflammatory skin condition with red and scaly plaques, its types, causes, diagnosis and treatment options.DermNet does not provide an online consultation service. If you have any concerns with your skin or its treatment, see a dermatologist for advice. Search DermNet to see clinical skin condition summaries and dermatology images. Psoriasis is a multifactorial systemic disease including inflammation and epidermal hyperproliferation. Nail psoriasis can involve the nail bed, nail matrix, hyponychium, and nail folds. Theories include: Activation of the antimicrobial peptide LL-37 by Candida and the cytokine overflow theory. Increased expression of interleukin (IL)-10 in the ... Buccis, Eastern auto parts, Evolve med spa charlotte, Laundromart, Florence morning news obituaries, Vannessa vasquez, 10th mountain, Pintas and mullins, Hyper kidz columbia, Once upon a child, Sr sol, John john, Nysofhealth, L'bri
DermNet™ is a website that provides reliable and evidence-based information on skin diseases and their treatments. You can browse by condition, topic, or image, or search …. Cantoni's
· Syphilis is transmitted sexually from person to person, either by direct contact with syphilitic ulcers or by infected blood through microtrauma during sexual intercourse. Syphilis ulcers occur most commonly on the genitals and on the anal area, but can also occur on the lips or mouth. Hence, sex in any form — vaginal, anal, or oral — is ...Pityriasis lichenoides (PL) is an uncommon cutaneous rash of uncertain aetiology . The acute form, pityriasis lichenoides et varioliformis acuta (PLEVA), and the chronic form, pityriasis lichenoides chronica (PLC), sit at either end of a disease spectrum with many patients showing overlapping features. The eponym Mucha–Habermann disease is ... · Syphilis is transmitted sexually from person to person, either by direct contact with syphilitic ulcers or by infected blood through microtrauma during sexual intercourse. Syphilis ulcers occur most commonly on the genitals and on the anal area, but can also occur on the lips or mouth. Hence, sex in any form — vaginal, anal, or oral — is ...Phytophotodermatitis, a form of plant dermatitis, is a skin reaction that occurs after natural photosensitising chemicals (furanocoumarins) present within plant sap and fruits, become smeared onto the skin, and there is subsequent exposure to sunlight. The areas affected become acutely red, and often blister. Differential diagnosis of itchy skin. Disorders of sweating and sweat. Eczema, dermatitis and allergies. Erosions and ulcers. Immunological disorders. Lesions, tumours and cancers. Pigmentation problems. Pustular skin conditions. Reactions to external agents. Skin conditions caused or aggravated by infection by malassezia include: Pityriasis versicolor – most often due to M. globosa, M. sympodialis and M. furfur. Malassezia folliculitis due to the yeast growing in the hair follicles where they produce inflammation. Steroid acne. Seborrhoeic dermatitis, dandruff, sebopsoriasis and …Pityriasis rosea is a self-limiting rash, which resolves in about 6–10 weeks. It is characterised by a large circular or oval "herald patch", usually found on the chest, abdomen, or back. The herald patch is followed some time later, typically two weeks or so, by the development of smaller scaly oval red patches, resembling a Christmas tree ...Chronic venous insufficiency can be caused by: Venous factors. Incompetent valve in the superficial, perforating, and deep systems. External compression of veins. Deep venous obstruction. Previous deep vein thrombosis. Impaired calf muscle pump. Immobility including lack of physical exercise and paralysis. Joint disease …Feb 1, 2021 · Behçet disease (BD) is a rare, multi-system condition characterised by recurrent painful oral and genital ulcers, a variety of skin lesions, and eye problems. Many other organs such as the gut, nervous system, lungs, and arteries may also be affected. It is a form of vasculitis which primarily targets small arteries, but can … Pityriasis rosea is a self-limiting rash, which resolves in about 6–10 weeks. It is characterised by a large circular or oval "herald patch", usually found on the chest, abdomen, or back. The herald patch is followed some time later, typically two weeks or so, by the development of smaller scaly oval red patches, resembling a Christmas tree ... Periorificial dermatitis has been reported to resolve in 72% of children in an average time of 3.8 months [3]. Corticosteroid use may prolong the disease course [4]. Lesions typically resolve without scarring; however, pigmentary changes may occur [3]. Recurrence in children is common in those who are dependent on a corticosteroid [3].Skin as a barrier. Skin is the largest organ of the human body and comprises three major layers; epidermis, dermis, and subcutis [see Structure of normal skin]. One vital function of the skin is to form an effective barrier between the organism and the environment. It maintains an ‘inside-outside’ barrier regulating water loss, and an …Melanoma in situ is an early form of primary melanoma in which the malignant cells are confined to the tissue of origin, the epidermis. It is also known as in-situ melanoma and level 1 melanoma. As melanoma in situ has no associated mortality, early detection of melanoma in an in-situ phase increases survival from melanoma and leads to less ...Actinic keratoses are very common on sites repeatedly exposed to the sun, especially the backs of the hands and the face, most often affecting the ears, nose, cheeks, upper lip, vermilion of the lower …This is a dataset hosted by the Centers for Disease Control and Prevention. The organization has an open data platform found here and they update their information …Carotenoderma is due to carotenaemia. Primary carotenaemia is usually due to excessive intake of carotenoid-containing foods or supplements. Carotene is found in all pigmented fruits and vegetables. High levels are associated with a deep yellow, orange, or green colour. Examples of fruit and vegetables with a high β-carotene content include ...Phytophotodermatitis, a form of plant dermatitis, is a skin reaction that occurs after natural photosensitising chemicals (furanocoumarins) present within plant sap and fruits, become smeared onto the skin, and there is subsequent exposure to sunlight. The areas affected become acutely red, and often blister.Skin as a barrier. Skin is the largest organ of the human body and comprises three major layers; epidermis, dermis, and subcutis [see Structure of normal skin]. One vital function of the skin is to form an effective barrier between the organism and the environment. It maintains an ‘inside-outside’ barrier regulating water loss, and an … · Heat urticaria is a rare type of physical or chronic inducible urticaria. It is also called contact heat urticaria and localised heat urticaria. Heat urticaria occurs following the direct contact of a warm stimulus to the skin. The onset of urticaria is typically rapid (within minutes) and the urticaria resolves within 1–2 hours.Fractional laser treatment is a non- invasive treatment that uses a device to deliver a laser beam divided into thousands of microscopic treatment zones that target a fraction of the skin at a time, analogous to a photographic image being enhanced or altered pixel by pixel. Fractional laser treatment has bridged the gap between the ablative and ...Piedra is a fungal infection of the hair, characterised by the deposition of small black or white nodules along the hair shaft. These look like small stones, hence the name piedra, meaning ‘stone’ in Spanish. Piedra is also known as Trichomycosis nodosa or Trichomycosis nodularis. There are two types: black piedra and white piedra, …DermNet NZ is a comprehensive online resource for skin health information. Learn about the causes, features, diagnosis, and management of different types o…Polymorphic light eruption (PMLE) is a seasonal, acquired, idiopathic photodermatosis occurring in spring and early summer. It is also known as polymorphous light eruption, sun allergy, sun poisoning, prurigo aestivalis, summer eruption/prurigo, or eczema solare. Juvenile spring eruption is a variant of PMLE.Multiple milia appear on within an inflamed plaque up to several centimetres in diameter. Usually found on an eyelid, behind the ear, on a cheek or jaw. Affect children and adults, especially middle-aged women. Sometimes associated with another skin disease including pseudoxanthoma elasticum , discoid lupus erythematosus , lichen planus.Lip licker’s dermatitis is a reaction of the lips ( eczematous cheilitis) and surrounding skin ( irritant contact dermatitis) due to contact with an irritating substance — in this case, saliva from the patient’s own tongue [1,2]. Other names for lip licker's dermatitis are lip-lick cheilitis, irritant contact cheilitis due to lip-licking ... Phytophotodermatitis, a form of plant dermatitis, is a skin reaction that occurs after natural photosensitising chemicals (furanocoumarins) present within plant sap and fruits, become smeared onto the skin, and there is subsequent exposure to sunlight. The areas affected become acutely red, and often blister. This refers to a depression in the skin due to the elastic tissue within the dermis that is lost. Less commonly, acne scarring can result in a keloid or hypertrophic scar. A hypertrophic scar is the same size as the acne lesion that caused it, while a keloid scar is an excessive scar formation often larger than the causative lesion. · Diphenylcyclopropenone (DPCP), also known as diphencyprone, is an experimental sensitising agent used by some dermatology centres to treat skin conditions by contact immunotherapy. Diphenylcyclopropenone is most often used to treat alopecia areata. Diphenylcyclopropenone is made up in acetone.What is a digital myxoid pseudocyst? A digital myxoid pseudocyst is a shiny papule found at the end of a finger or toe, close to the nail. It is called a pseudocyst because it is not surrounded by a capsule, unlike a true cyst. It is also called a myxoid cyst, a mucous cyst, a digital ganglion cyst, and a digital synovial cyst.Melasma is a common acquired skin disorder that presents as a bilateral, blotchy, brownish facial pigmentation. This form of facial pigmentation was previously called chloasma, but as this derives from the Greek meaning ‘to become green’, the term melasma (brown skin) is preferred. It was also known as the ‘mask of pregnancy’. Introduction. Itch is defined by a desire to scratch. An acute or chronic itchy rash is most often due to dermatitis / eczema. Dermatitis can be primary, or secondary to scratching. Stages include: Acute dermatitis: red, oozy, swollen skin. Subacute dermatitis: red, dry skin. Chronic dermatitis: skin coloured or dark, dry, thickened skin with ... Scalp psoriasis is a skin condition characterised by red, thickened, well- demarcated patches or plaques with overlying silvery-white scales, affecting part or all of the scalp. It can be contained within the hairline, though frequently affects the back of the head, or extends onto the forehead ( facial psoriasis ), ears, or neck. Lip licker’s dermatitis is a reaction of the lips ( eczematous cheilitis) and surrounding skin ( irritant contact dermatitis) due to contact with an irritating substance — in this case, saliva from the patient’s own tongue [1,2]. Other names for lip licker's dermatitis are lip-lick cheilitis, irritant contact cheilitis due to lip-licking ... A fibrous papule of the nose is a common and harmless skin lesion. It is a firm solitary papule that occurs on or around the nose and has a characteristic appearance under the microscope. A fibrous papule of the nose may also be known as a fibrous papule of the face, solitary angiofibroma, or sporadic angiofibroma.Learn about atopic dermatitis, the most common inflammatory skin disease worldwide, affecting people with an atopic tendency. Find out the causes, clinical features, complications, diagnosis, and treatment of this condition.It affects the superficial layers of the epidermis and is typically caused by Staphylococcus aureus and Streptococcus pyogenes (Group A beta – haemolytic streptococci (GABHS)). It can be classified into non- bullous (also known as ‘school sores’) and bullous impetigo. Ecthyma is a deep form of impetigo causing deeper …DermNetNZ offers a student resource centre with quizzes, cases, and articles on dermatology topics. Sign up for the mailing list to get updates and follow DermNetNZ on …Feb 1, 2021 · Behçet disease (BD) is a rare, multi-system condition characterised by recurrent painful oral and genital ulcers, a variety of skin lesions, and eye problems. Many other organs such as the gut, nervous system, lungs, and arteries may also be affected. It is a form of vasculitis which primarily targets small arteries, but can affect both ... Measles vaccine induces long-term (probably life-long) immunity in most individuals. Vaccination schedules recommend a two-dose immunisation strategy; the first dose at 12–15 months of age, followed by a second dose at 4–6 years. Measles vaccine should not be given during pregnancy.By definition, dermographism appearing at least 30 minutes after stroking. It may be described after a typical weal of immediate dermographism comes and goes, 3–6 hours later a wide weal reappears without a flare at the same site and persists for up to 48 hours. Associated with burning and tenderness of the weal.This is a dataset hosted by the Centers for Disease Control and Prevention. The organization has an open data platform found here and they update their information …Subacute cutaneous lupus erythematosus. Subacute cutaneous lupus erythematosus is less commonly associated with SLE with approximately 50% having a mild form of SLE. It is thought 20–40% have drug-induced SCLE. It comprises 10–15% of cutaneous LE presentations. The skin changes are more persistent than those of …DermWeb provides links to various online image galleries of dermatological diseases and conditions. Browse by topic, area of the body, or search by keywords to find high quality …Dyskeratosis congenita. Fungal nail infections. Habit-tic nail deformity. Leukonychia. Lichen planus nail images. Median canaliform nail dystrophy. Medical nail avulsion. Melanonychia. Melanoma of nail unit.Scabies is a transmissible skin disease caused by the ectoparasitic mite Sarcoptes scabiei var. hominis. This variant infests humans only; scabies cannot be caught or transferred to other animals. Scabies is a highly contagious infestation of the human epidermis. Scabies was described by Aristotle who likened the disease to ‘lice of the flesh’.Dermoscopy or dermatoscopy refers to the examination of the skin using skin surface microscopy, and is also called ‘epiluminoscopy’ and ‘epiluminescent microscopy’. Derm (at)oscopy is mainly used to evaluate pigmented skin lesions. In experienced hands it can make it easier to diagnose melanoma.A dome-shaped or egg-shaped lump about 2–10 cm in diameter (some may grow even larger) Lipomas are most common on the shoulders, neck, trunk and arms, but they can occur anywhere on the body where fat tissue is present. Most lipomas are symptomless, but some are painful when applying pressure.Chickenpox is a highly contagious viral infection that causes an acute fever and blistered rash, mainly in children. Chickenpox is also known as varicella. The name may be derived from the French term for chickpea, chiche pois. Another theory is that the word 'chicken' was derived from a slang term for 'child'.A medium congenital melanocytic naevi is 1.5–19.9 cm. A large or giant congenital melanocytic naevus is ≥ 20 cm in diameter. A modification of the above criteria is used in some centres [2] in an effort to increase the accuracy of classification. Small congenital melanocytic naevi are < 1.5 cm in diameter.Chronic venous insufficiency can be caused by: Venous factors. Incompetent valve in the superficial, perforating, and deep systems. External compression of veins. Deep venous obstruction. Previous deep vein thrombosis. Impaired calf muscle pump. Immobility including lack of physical exercise and paralysis. Joint disease …Dyskeratosis congenita. Fungal nail infections. Habit-tic nail deformity. Leukonychia. Lichen planus nail images. Median canaliform nail dystrophy. Medical nail avulsion. Melanonychia. Melanoma of nail unit.In general, patients with extramammary Paget disease have a good prognosis with a 5-year overall survival rate of 75–95%. However, quality of life can be significantly impacted after radical surgery. Although extramammary Paget disease is usually intraepithelial, it can progress to invasive disease with metastases.. 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