Intravascular papillary endothelial hyperplasia of the internal auditory canal

Abstract

Intravascular papillary endothelial hyperplasia (IPEH), also known as Masson's tumor, is a rare vascular lesion characterized by intravascular proliferation of endothelial-lined papillae and a propensity for manifestation in the head and neck. Signs and symptoms associated with IPEH generally occur due to compressive effects of the lesion on adjacent structures. A rare instance of IPEH occurring in the internal auditory canal is presented herein. Clinical presentation, radiographic and pathologic findings, and management strategies are discussed.

Intracerebral Masson's Tumor—Slow-Filling Vascular Lesion Demonstrated by Indocyanine Green Video Angiography

“…Although relatively uncommon, it is most often seen in skin and soft tissue where it resembles a sarcoma 2 . However, it can arise from any vascular origin in the body and has been described in a variety of locations such as the oral cavity 3,4 , ulnar artery 5 , internal auditory canal 6 , bladder 7 , hand 8 and skull 9 . The central nervous system can also be affected by this lesion.…”