Sweat gland tumour of the eyelid with conjunctival involvement

An 87-year-old woman presented with a rapidly growing tumour at the nasal side of the upper eyelid. The clinical diagnosis was basal cell carcinoma. During surgery, the impression of malignancy was accentuated by the finding that even the conjunctiva had been invaded. Histological examination revealed an eccrine acrospiroma with, indeed, many mitoses but, on the other hand, a completely benign aspect. Besides, there was no recurrence after 1 year.