Giant vascular leiomyoma in the hand.

Vascular leiomyoma or angioleiomyoma is a benign solitary tumour that arises from the mediae layer of the vein walls. It is usually located in the wall of the uterus. We describe a 73-year-old man who presented with a slowly growing mass in the thenar region of his right hand which, on histological examination, was shown to be a giant vascular leiomyoma. This is extremely rare and we could find only about 100 such cases reported in English.