Pseudoaneurysm of Posterior Ascending Branch of Vertebral Artery: Previously Unreported Case

Abstract

Background: Pseudoaneurysms are less common than true aneurysms. Herein, we present a rare case of a mass of the right posterior ascending artery.

Case description: This was identified during routine dissection of an adult female cadaver. Histology demonstrated that the mass was a pseudoaneurysm. The mass was located posterior to the right alar ligament superior to the right portion of the transverse ligament and measured 7.37 mm and 2.97 mm.

Conclusions: To our knowledge, such a case has not previously been reported. Epidural masses anterior to the cervical dura mater at the craniocervical junction should consider such a pathology in the differential diagnosis.

Keywords: Anatomy; Aneurysm; Cervical vertebra; Pseudoaneurysm; Vertebral artery.