Clinical presentation

Patients have erythema and yellow-white greasy scaling of the sebaceous areas of the scalp, nasolabial folds, chest, back and intertriginous zone. The eruption is characterised by widespread hyperkeratotic, greasy, inflammatory lesions and may progress to erythroderma.[128]  This entity, similar to that in the immunocompetent population can have a clinical overlap with psoriasis. Examination of the patient for co-existing psoriasis should also occur.