[Syringolymphoid hyperplasia with alopecia]

Syringolymphoid hyperplasia with alopecia is a chronic patchy skin eruption consisting of hairless, anhidrotic, reddish-brown papules associated with pseudofollicular hyperkeratosis. Skin biopsies show dense lympho-histiocytic infiltrates aggregated in the dermis and around the hyperplastic sweat ducts and glands, imitating epithelial islands. Occasionally, obliteration of blood vessels may be found. This case report deals with a 52-year-old man suffering since 9 years ago from this distinctive skin disease.