Angioleiomyoma arising from a digital artery with demonstrable intra-operative anatomy.

Angioleiomyoma is a rare benign tumour of smooth muscle cells derived from the tunica media of vascular walls, classically described as originating from veins. There are sporadic case reports documenting the occurrence of angioleiomyoma in the digits. We review the existing literature and report an angioleiomyoma occurring in the radial digital artery of a 42-year-old man and add to evidence of arterial origin with demonstrable intra-operative anatomy. Angioleiomyoma should form part of the differential diagnosis for subcutaneous masses occurring in the digit. Level of Evidence: Level V, diagnostic study. [ABSTRACT FROM AUTHOR]