logo Terminology key points test

Introduction to dermatology

Terminology test

Distribution Mix and match [table] : Flexural || Flexural psoriasis : Follicular || Follicular lichenification : Unilateral ||Unilateral (dermatomal) herpes zoster : Unilateral || Unilateral contact allergic dermatitis : Unilateral || Unilateral (dermatomal) herpes zoster : Extensor || Insect bites (papular urticaria) on extensor surfaces : Follicular || Follicular acne papules and pustules : Extensor || Extensor granulomas and vitiligo : Flexural || Flexural psoriasis Configuration Mix and match [table] : Discoid || Chronic plaque psoriasis (discoid pattern) : Annular || Chronic plaque psoriasis (annular pattern) : Reticulated || Reticulate lichen planus of buccal mucosa : Target || Bullous target lesions due to erythema multiforme minor : Discoid || Chronic plaque psoriasis (discoid pattern) : Linear || Linear bullous plant contact dermatitis : Annular || Annular drug eruption : Target || Target lesion in erythema multiforme major : Linear || Linear morphoea (coup de sabre) : Reticulated || Reticulate naevoid dermal pigmentation Colour Mix and match [table] : Purpura || Purpuric acute hypersensitivity vasculitis : Achromia || Post traumatic leukoderma : Telangiectasia || Essential telangiectasia : Erythema || Erythematous urticarial weals : Hyperpigmentation || Hyperpigmented keloid scars : Infarcts || Infarcted tissue due to necrotising fasciitis : Achromia || Leukoderma due to vitiligo : Purpura || Purpuric ecchymoses (senile purpura) : Erythroderma || Erthroderma due to psoriasis : Hypopigmentation || Hypopigmented ash leaf macules of tuberous sclerosis : Erythema || Erythematous axillary psoriasis : Hyperpigmentation || Hyperpigmented macules of melasma Morphology Mix and match [table] : Papule || Papules are palpable and less than 0.5cm : Patch || Patches are large flat areas of colour change (lentigo) : Weal || Weals are oedematous plaques (acute urticaria) : Papule || Papules are palpable and less than 0.5cm (dermatofibroma) : Pustule || Pustules are purulent vesicles (acne) : Nodule || Nodules are large solid lesions (squamous cell carcinoma) : Vesicle || Vesicles are small blisters filled with fluid (herpes zoster) : Pustule || Pustules are purulent vesicles (pustular vasculitis) : Bulla || Bullae are large fluid-filled blisters (haemorrhagic bullous pemphigoid) : Macule || Macules are small flat areas of colour change (capillaritis) : Weal || Weals are oedematous plaques (dermographism) Secondary change Mix and match [table] : Crusting || Crusting due to herpes simplex (eczema herpeticum) : Hypertrophy || Hypertrophic scarring (surgical wound) : Lichenification || Lichen simplex : Ulcer || Venous ulceration : Atrophy || Elastic tissue changes causing dermal atrophy (striae due to corticosteroids) : Crusting || Crusting in impetiginised atopic dermatitis