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Summer 2003, Vol. 11 No. 2

H.K. Dermatol. Venereol. Bull. (2003) 11, 103


Dermato-venereological Quiz

Dermato-venereological Quiz

SCK Ho 何正綱

Abstract
This 39-year-old lady presented with a three-year history of persistent nodules on the scalp. There was all along no bleeding or erosion over the nodules. The lesions were asymptomatic and there was no lymphadenopathy. Her past health was good and there was no significant family history. Physical examination revealed multiple erythematous nodules on the scalp, each measuring three to seven centimetres in diameter (Figure 1). Similar lesions were also found around the ear. Histologically there was a lobular proliferation of blood vessels in the mid and superficial dermis. The blood vessels were lined by epithelioid, endothelial cells and there was an infiltrate consisting of lymphocytes and eosinophils. There were no lymphoid follicles. Investigations also showed peripheral blood eosinophilia.