A Case Report of a Spontaneous Venous Aneurysm Present for 25 Years.

Venous aneurysms (VAs) are uncommon vascular abnormalities characterized by a focal dilation of a vein, wherein the vessel is markedly enlarged compared to its original size. VAs can be classified as either superficial or deep. A 60-year-old female patient presented with a 25-year history of a spontaneous VA on her wrist. Throughout this duration, the patient experienced no pain, only mild discomfort. The aneurysm was superficial, subcutaneous, and diagnosed through clinical examination. Surgical ligation and excision were performed under local anesthesia. Swellings at this site on the wrist can be due to a ganglion, arteriovenous (A-V) fistula, implantation dermoid, or sebaceous cyst; however, this uncommon VA had distinctive clinical features. VAs are often diagnosed using duplex ultrasound, magnetic resonance venography, and blood tests. Definitive treatment involves surgical ligation and excision of the aneurysm.