Non-traumatic ulnar artery aneurysm in a middle-aged male

Aneurysms in the extremity arteries are rare and usually occur as pseudoaneurysms secondary to trauma or iatrogenic interventions. True spontaneous non-traumatic aneurysms in the extremities are extremely rare with no consensus on their aetiology or optimum management strategy. Here, we discuss a case of a young man with an isolated spontaneous non-traumatic ulnar artery aneurysm presenting with acute pain and discomfort.