Nontraumatic Ulnar Artery Pseudoaneurysm in the Forearm of a Seven-Month-Old Infant: A Case Report

Ulnar artery aneurysms are uncommon in infants and even in adults. It is difficult to diagnose, with a range of different treatment methods. To the best of our knowledge, no case has been reported that occurred in the forearm of infants to date. We report a rare case of a nontraumatic ulnar artery pseudoaneurysm in the forearm of a seven-month-old infant. It was diagnosed by ultrasound and contrast-enhanced computed tomography and treated by aneurysm resection and reconstruction. The early postoperative course has been uneventful, but long-term follow-up will be required as the patient grows.