It may be more difficult and under-recognised in patients with skin of colour. Rosacea has been associated with depression, hypertension, cardiovascular diseases, anxiety disorder, dyslipidemia, diabetes mellitus, migraine, rheumatoid arthritis, Helicobacter pylori infection, ulcerative colitis, and dementia. Tinea capitis is a fungal infection of the scalp, involving both the skin and hair. It is also known as scalp ringworm. Symptoms of tinea capitis include hair loss, dry scaly areas, redness, and itch. Tinea barbae is essentially the same condition involving the …Candidal intertrigo classically presents as erythematous and macerated plaques with peripheral scaling. There are often associated superficial satellite papules or pustules. Affected areas may include: Skin folds below the breasts or …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 …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.Many patients with longstanding type 1 diabetes develop diabetic cheiroarthropathy or diabetic stiff skin (digital sclerosis). This results in restricted mobility of the joints of their hands and stiff, waxy, thickened and yellowed skin. This is thought to be due to the reaction of glucose with proteins in the skin and increased glycation end ...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 …Plant dermatitis is an inflammation of the skin caused by topical contact with a plant or plant constituent. Phytodermatitis is the formal medical name for plant dermatitis, and it may be an irritant contact dermatitis, allergic contact dermatitis, or phytophotodermatitis. Contact urticaria and mechanical irritation can also be due to plants.Salicylic acid belongs to a group of medicines known as keratolytics. It is used in the treatment of scaly skin diseases where the skin has become thickened, scaly and flaky. Topical preparations of salicylic acid, either alone or in combination with other medicines, can be used to treat the following common scaly skin conditions: Viral warts. 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 ... Dermatologist – USA. One of the most easy, complete and comprehensive sources for dermatological conditions. Every topic is well written and covered completely. This site is …DermNet is a not-for-profit, independent health publishing organisation with a mission to make authoritative information about the skin accessible to anyone in the world. We have information about almost every skin condition and have a library of over 20,000 dermatology images. All of our content is created or reviewed by a …Cholinergic urticaria is a common chronic inducible urticaria that is characterised by the presence of short-lived transient hives (itchy bumps) due to stimuli that induce sweating. It typically presents with small, raised 1–4 mm wheals which last for 15–30 minutes. It is also sometimes referred to as cholinergic angioedema urticaria or ...Dermatology resources for medical students. Welcome to DermNet’s medical student resource centre. This centre has been designed to help increase your confidence and …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.See full list on dermnetnz.org Guttate psoriasis is a clinical diagnosis, aided by dermoscopy, which can be confirmed on skin biopsy. Examination and investigations should include a search for streptococcal infection. Tests may include: Swabs for bacteriology. Blood tests — Anti-streptolysin O titre (ASOT), anti-DNase B titre. 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 term, benign keratosis, is ... Dermatitis overview. Created 2008. Learning objectives. Describe acute and chronic dermatitis; Outline general management of dermatitis; Introduction. Dermatitis and eczema are words that are often used interchangeably to describe a variety of distinct skin conditions in which there is epidermal and dermal inflammation and nearly always intense …Folliculitis means an inflamed hair follicle due to any cause. The result is a tender red spot, often with a surface pustule. Folliculitis may be superficial or deep. It can affect anywhere there are hairs, including chest, back, buttocks, arms, and legs. Acne and its variants are also types of folliculitis.Benign pigmented skin lesions may be melanocytic or non-melanocytic in origin. Specific dermatoscopic features suggesting melanocytic origin include the presence of: Pigment network. Aggregated brown or black globules. Specific features: parallel pattern on palms and soles, follicular openings on facial skin, homogeneous steel-blue of blue naevus.Exanthems during childhood are very common and are usually due to specific viral infections: Chickenpox (varicella) Measles (morbillivirus) Rubella (rubella virus) Roseola (herpes virus 6B) Erythema infectiosum (parvovirus B19). Viral exanthems also include: Acute human immunodeficiency virus infection syndrome. Smallpox.Annual Conference Information. General information for the annual NZDSI conference. More... NZ Dermatalogical Society Inc is a not-for-profit incorporated society of more than 60 dermatologists.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 … A list of the most commonly used key terms and phrases in dermatology. Learn about seborrhoeic dermatitis, a common form of eczema that affects the scalp, face, and trunk. Find out the causes, symptoms, diagnosis, and treatment options for this inflammatory skin condition. Learn about seborrhoeic keratosis, a common harmless warty spot that appears with age. Find out the causes, features, complications, diagnosis and treatment of this skin condition.UVB phototherapy is delivered within a specially designed cabinet. Fluorescent light tubes are positioned to target affected areas with ultraviolet radiation (eg, hands or feet). For full body treatments, patients are undressed with genitalia covered, and eyes or full face should be protected with goggles or a face mask. 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 ... It is characterised by: Open and closed uninflamed comedones (blackheads and whiteheads) Inflamed papules and pustules. In severe acne, nodules and pseudocysts. Post-inflammatory erythematous or pigmented macules and scars. Adverse social and psychological effects. Severity is classified as mild, moderate, or severe. The solar (actinic) keratosis is the most common precursor lesion for squamous cell carcinoma. Histologically, atypical keratinocytes are found in the basal layer of the epidermis. Actinic keratoses are found on sun-exposed sites, mainly face, ears and hands. They are often multiple and have a hard scaly surface without induration …Many patients with longstanding type 1 diabetes develop diabetic cheiroarthropathy or diabetic stiff skin (digital sclerosis). This results in restricted mobility of the joints of their hands and stiff, waxy, thickened and yellowed skin. This is thought to be due to the reaction of glucose with proteins in the skin and increased glycation end ...It may cause discomfort or bleeding when passing bowel motions, and aggravate any tendency to constipation, particularly in children. Lichen sclerosus causes adhesions and scarring. The clitoris may be buried. The labia minora resorb/shrink. The entrance to the vagina tightens (introital stenosis ).Folliculitis means an inflamed hair follicle due to any cause. The result is a tender red spot, often with a surface pustule. Folliculitis may be superficial or deep. It can affect anywhere there are hairs, including chest, back, buttocks, arms, and legs. Acne and its variants are also types of folliculitis.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 …The solar (actinic) keratosis is the most common precursor lesion for squamous cell carcinoma. Histologically, atypical keratinocytes are found in the basal layer of the epidermis. Actinic keratoses are found on sun-exposed sites, mainly face, ears and hands. They are often multiple and have a hard scaly surface without induration …Learn about pityriasis rosea, a self-limiting rash that causes a large circular or oval patch on the chest, abdomen, or back. Find out the causes, symptoms, diagnosis, treatment, and …Imiquimod is an immune response modifier. It is manufactured as a 5% (50 mg/g) cream called Aldara™. Generic forms of imiquimod cream are also available. The Perrigo brand is funded by PHARMAC in New Zealand (2019). A 3.75% cream called Zyclara™ has also been approved by the FDA in the USA but is not yet available in New Zealand (March 2017). 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’. 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.Candidal intertrigo classically presents as erythematous and macerated plaques with peripheral scaling. There are often associated superficial satellite papules or pustules. Affected areas may include: Skin folds below the breasts or …Hairy tongue is an unusual, harmless condition characterised by a 'hairy' enlargement and discolouration of the filiform papillae. The filiform papillae are tiny conical bumps found on the surface of the front two-thirds of the tongue that do not carry taste buds. It is also known as black hairy tongue and lingua villosa nigra.Dermatopathology is a subspecialty of pathology. Pathology is the study of diseases. It includes the study of the causes, course and progression and the complications that arise from the disease. Anatomic pathology, or histopathology, refers to the study of the structural and compositional changes that occur in organs and tissues as a result of ...Anal intraepithelial neoplasia. Anal intraepithelial neoplasia (AIN) is a superficial squamous-cell carcinoma usually associated with human papillomavirus (HPV) 16 and 18, often seen in HIV /AIDS. The clinical features are non-specific, presenting as a bleeding, well-defined red, scaly erythematous rash-like plaque on the perianal skin.A full-thickness skin graft (FTSG) is taken by removing all the layers of the skin down to the fat with a scalpel. It is done in a similar way to skin excision. The piece of skin is cut into the correct shape, then applied to the wound. This type of graft is often taken from the inner upper arm, neck, or in front of or behind the ear, where ...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.See full list on dermnetnz.org Lichen simplex is a chronic itchy skin disorder characterised by well demarcated, erythematous patches, and plaques of thickened leathery skin. Erythema may be variable, and lesions may be solitary or multiple. Lichen simplex is also known as neurodermatitis, lichen simplex chronicus, and neurodermatitis circumscripta. The solar (actinic) keratosis is the most common precursor lesion for squamous cell carcinoma. Histologically, atypical keratinocytes are found in the basal layer of the epidermis. Actinic keratoses are found on sun-exposed sites, mainly face, ears and hands. They are often multiple and have a hard scaly surface without induration (which would ... 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 antiandrogens such ... 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. Guttate psoriasis is a clinical diagnosis, aided by dermoscopy, which can be confirmed on skin biopsy. Examination and investigations should include a search for streptococcal infection. Tests may include: Swabs for bacteriology. Blood tests — Anti-streptolysin O titre (ASOT), anti-DNase B titre. Chondrodermatitis nodularis is a solitary, firm, and oval-shaped nodule, 4–6 mm in diameter, with central crust and surrounding erythema. In men, the most common site for CNH is the helix, while in women it is more often found on the antihelix. It is typically unilateral, located on the sleeping side, but can be bilateral.Chondrodermatitis nodularis is a solitary, firm, and oval-shaped nodule, 4–6 mm in diameter, with central crust and surrounding erythema. In men, the most common site for CNH is the helix, while in women it is more often found on the antihelix. It is typically unilateral, located on the sleeping side, but can be bilateral.Pyogenic granuloma of the skin presents as a painless red fleshy nodule, typically 5-10mm in diameter, that grows rapidly over a few weeks. The surface is initially smooth but can ulcerate, become crusty, or verrucous. Pyogenic granuloma is usually solitary, but multiple nodules and satellite lesions can erupt.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.dermnetnz .org. DermNet is a worldwide clinical resource website about dermatology and skin conditions. [1] Its co-founder and former editor-in-chief is dermatologist and Adjunct Associate Professor Amanda Oakley. [2] The website was launched in 1996 under the umbrella of the New Zealand Dermatological Society, and as of 2017, … Common wart. Common warts (verruca vulgaris) present as cauliflower-like papules with a rough, papillomatous and hyperkeratotic surface ranging in size from 1 mm to 1 cm or more. They may be solitary or multiple. Common warts are found most often on the knees, backs of fingers or toes, and around the nails ( periungual ). Guttate psoriasis is a clinical diagnosis, aided by dermoscopy, which can be confirmed on skin biopsy. Examination and investigations should include a search for streptococcal infection. Tests may include: Swabs for bacteriology. Blood tests — Anti-streptolysin O titre (ASOT), anti-DNase B titre. Irritant contact dermatitis develops when chemical or physical agents damage the skin surface faster than the skin can repair. Irritants remove oils and natural moisturising factor from the outer layer of the skin, allowing chemical irritants to penetrate the skin barrier and trigger inflammation. Factors influencing the development and ...DermNet NZ revision January 2021. Table of contents What is leprosy? Leprosy, also called Hansen disease, is a chronic bacterial infection primarily affecting the skin and peripheral nerves usually caused by Mycobacterium leprae. The form the disease takes depends on the person’s immune response to the infection. ... A dermatome is an area of skin that is primarily supplied by a single nerve root: communicating sensation from this skin region to the brain. Somatosensation includes feedback from mechanoreceptors, thermoreceptors, proprioceptors, pain receptors, and chemoreceptors. Dermatomes are different from Blaschko lines. Venous eczema can form discrete patches or become confluent and circumferential. Features include: Itchy red, blistered and crusted plaques; or dry fissured and scaly plaques on one or both lower legs. Orange-brown macular pigmentation due to haemosiderin deposition. Atrophie blanche (white irregular scars surrounded by red spots)It may cause discomfort or bleeding when passing bowel motions, and aggravate any tendency to constipation, particularly in children. Lichen sclerosus causes adhesions and scarring. The clitoris may be buried. The labia minora resorb/shrink. The entrance to the vagina tightens (introital stenosis ).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 lip, temples, forehead, and balding scalp. In severely chronically sun-damaged individuals, they may also be found on the upper trunk, upper and ...Vitiligo is an acquired, chronic, depigmenting disorder of the skin, in which pigment -producing cells ( melanocytes) that determine the colour of skin, hair, and eyes are progressively lost. It appears as milky-white patches of skin ( leukoderma) and can be cosmetically very disabling, particularly in people with dark skin.Berdazimer, a first-in-class gel, allows self-application along with the stable release of NO to the affected skin at the time and site of application, minimising systemic exposure. This is significant as a potential alternative to current molluscum contagiosum treatments including in-clinic curettage, cryotherapy, laser ablation, or chemical ... Keratosis pilaris is a very common, dry skin condition caused by keratin accumulation in the hair follicles. The Latin term keratosis means ‘ scaly skin’, and pilaris means ‘hair’. Keratosis pilaris usually starts in childhood but becomes more obvious during the teenage years and adulthood. It is harmless and is not infectious. Cellulitis is a common bacterial skin infection of the lower dermis and subcutaneous tissue. It results in a localised area of red, painful, swollen skin, and systemic symptoms. Left untreated, cellulitis can be life-threatening. Similar symptoms are experienced with the more superficial infection, erysipelas, so cellulitis and erysipelas are ...Dermatitis overview. Created 2008. Learning objectives. Describe acute and chronic dermatitis; Outline general management of dermatitis; Introduction. Dermatitis and eczema are words that are often used interchangeably to describe a variety of distinct skin conditions in which there is epidermal and dermal inflammation and nearly always intense …DermNet offers over 20,000 clinical images of skin conditions for education, teaching and other purposes. You can download watermarked images for free or purchase non …Chronic urticaria can affect children and adults. Chronic inducible urticaria is more common than chronic spontaneous urticaria. Adults with chronic urticaria have a significantly higher prevalence of atopicdermatitis, asthma, and allergic rhinitis than a control population. In children, the prevalence of atopy is similar in those with …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 particularly of the ankle.Many writers are based in New Zealand, but others have contributed from UK, USA, Canada, Australia, Mexico, Indonesia, Sri Lanka and elsewhere. Visit our website at …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 particularly of the ankle.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 … Dermatoporosis is a term used to describe chronic cutaneous insufficiency and fragility associated with both intrinsic and extrinsic ageing. The features of dermatoporosis include: Skin fragility and atrophy. Senile purpura. Stellate pseudoscars (star-shaped white patches) Non-healing atrophic ulcers. A melanocytic naevus (American spelling ‘ nevus ’), or mole, is a common benign skin lesion due to a local proliferation of pigment cells ( melanocytes ). It is sometimes called a naevocytic naevus or just 'naevus' (but note that there are other types of naevi ). A brown or black melanocytic naevus contains the pigment …The NZ Dermatological Society Inc (NZDSI) was established in 1948. Its members are specialist dermatologists – they are the medical experts in skin diseases, conditions and their treatment. In 2012, the rules of the Society were varied. All members are now Fellows of the Society, and may use the postnominal …
Adults. Assess risk factors and comorbid disease of psoriasis at presentation and as indicated thereafter. Cardiovascular risk factors, and management of these (eg, smoking cessation ) Measure blood pressure, lipid studies and fasting glucose at least annually. Risk of venous thromboembolism and its management [1].. Gunfightersinc
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 erosions of the skin ...Learn about pityriasis rosea, a self-limiting rash that causes a large circular or oval patch on the chest, abdomen, or back. Find out the causes, symptoms, diagnosis, treatment, and …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.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 …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 ... 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: DermNet forhealthcare professionals. The same great content you have always known, now with pro features. Join the waitlist.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 …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 … Mycosis fungoides (MF) represents 50% of all primary cutaneous lymphomas and 60-70% of all cutaneous T-cell lymphomas (CTCL). However, it is an uncommon condition with an estimated incidence worldwide of 6.4 per million. Onset is usually in late adulthood ( median age 55–60 years) with a male predominance (2:1) in white patients. Autoimmunity is an immune response against the self that usually involves T and B lymphocytes. The particular protein or structure targeted by the T and B lymphocytes is called the self-antigen [3]. Autoimmunity may result in autoimmune disease with tissue damage or impaired physiological function. 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. 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 ... A list of the most commonly used key terms and phrases in dermatology.Onycholysis can affect a single nail or multiple fingernails and/or toenails. The distal part of the nail is most commonly affected lifting the free edge; sometimes the nail may detach laterally or proximally. Oil spot sign is an island of onycholysis under a nail. Clinical features can include the following signs.Autoimmunity is an immune response against the self that usually involves T and B lymphocytes. The particular protein or structure targeted by the T and B lymphocytes is called the self-antigen [3]. Autoimmunity may result in autoimmune disease with tissue damage or impaired physiological function. Fungal infection of the nail, also known as onychomycosis, compromises over 50% of all nail disease with an estimated prevalence of 5.5%. They can affect the toenails, fingernails, or both. Fungal nail infections are also known as tinea unguium in the case of dermatophyte infections. .