Primary aneurysm of the basilic vein.

This is a report of a 71-year-old woman who presented with a superficial soft tissue mass in the antecubital fossa. Excision was undertaken under local anaesthesia. The lesion proved to be a primary aneurysm of the basilic vein. Reviewing the literature we found only a few previous reports of primary venous aneurysms in the upper extremities.