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Systemic dermatology

Cutaneous medicine diagnostic challenge

Match each picture with the correct diagnosis: Mix and match: [table] : Hyperlipidaemia || Xanthelasmata are cholesterol deposits. However 50% patients are normolipaemic. : Type I diabetes mellitus || About 50-80% of those with necrobiosis lipoidica have diabetes (mostly type 1). : Hypothyroidism || Hypothyroidism causes dry skin. Dry skin may be complicated by asteatotic eczema (eczema craquele), especially of the lower legs. It responds well to low potency topical steroids and can be prevented by emollients. : Cushing's syndrome || Long term systemic, inhaled and topical steroids may cause cutaneous atrophy, stellate scarring and senile purpura. : Inflammatory bowel disease || A leg ulcer due to pyoderma gangrenosum is recognised by its overhanging purple-coloured necrotic edge. This is associated with inflammatory bowel disease, rheumatoid arthritis and various haematological malignancies.
© R Suhonen: Hepatitis C || Cutaneous signs of porphyria cutanea tarda (PCT) include skin fragility, blistering and milia on sun-exposed skin. PCT is associated with various hepatic disorders including hepatitis C, haemochromatosis and alcoholism.