Dermatology Glossary

A style and clinical descriptor denoting a rash or skin change that is located in areas of maximal sun exposure, used to...

An abnormal skin reaction to ultraviolet or visible light, producing rash, erythema, or blistering at sun-exposed sites.

A standardised legal and clinical document obtained from a patient prior to commencing ultraviolet light treatment, reco...

A self-limiting, papulosquamous skin eruption characterised by a single herald patch followed by a generalised secondary...

A skin condition characterised by the triad of atrophy, mottled hyper- and hypopigmentation, and telangiectasia, seen in...

A chronic, intensely pruritic dermatosis characterised by firm, hyperkeratotic nodules distributed symmetrically on the...

The primary lesion of plaque psoriasis: a well-demarcated, erythematous, raised area of skin covered with silvery-white...

Non-blanching haemorrhagic discolouration of the skin caused by extravasation of red blood cells into the dermis, classi...

A photochemotherapy regimen combining psoralen (a photosensitising agent) with long-wave ultraviolet A radiation, used t...

A class of vitamin A derivatives used topically or systemically in dermatology for conditions including acne, psoriasis,...

A validated seven-variable severity-of-illness scoring system used to predict in-hospital mortality in patients with Tox...

A benign enlargement of sebaceous glands presenting as yellowish, umbilicated papules typically on the face of middle-ag...

A chronic relapsing inflammatory skin condition characterised by greasy scales and erythema in sebum-rich areas such as...

Skin that displays histological and clinical changes attributable to intrinsic biological ageing, as distinct from photo...

A histological change in chronically sun-damaged skin characterised by the accumulation of degraded, basophilic elastic...

Intercellular oedema within the epidermis, a key histological feature of eczematous (spongiotic) dermatitis.

Staphylococcal Scalded Skin Syndrome; a severe blistering dermatosis caused by exfoliative toxins produced by Staphyloco...

Linear atrophic scars of the dermis caused by rapid stretching or hormonal changes, commonly called stretch marks.

A superficial pustule located immediately beneath the stratum corneum, characteristic of certain neutrophilic and pustul...

An acronym for Total Body Surface Area, used in dermatology to quantify the extent of skin involvement in conditions suc...

Permanently dilated small blood vessels (capillaries, venules, or arterioles) visible at the skin surface, presenting as...

The delivery of dermatological consultation, diagnosis, and management advice via remote electronic communication, typic...

Toxic Epidermal Necrolysis; a life-threatening mucocutaneous reaction characterised by widespread full-thickness epiderm...

A group of superficial fungal (dermatophyte) infections of the skin, hair, or nails, classified by anatomical site using...