Ischiofemoral Impingement Syndrome Secondary to Arteriovenous Malformation of the Quadratus Femoris

A Case Report

Abstract

Case: 

Ischiofemoral impingement syndrome (IFIS), an unusual presentation of hip pain, is frequently missed in clinical practice. We report a case of a 27-year-old man with complaints of gradual onset nonprogressive right gluteal pain with hip movement restriction for the past 5 years that was not relieved with conservative measures. Right hip magnetic resonance imaging revealed a vascular abnormality of the right quadratus femoris muscle suggestive of IFIS. This abnormal muscle was surgically excised, and its histologic evaluation was remarkable for an arteriovenous malformation.

Conclusion: 

The patient's longstanding symptomatic IFIS was ultimately attributed to a rare arteriovenous malformation of the quadratus femoris that resolved with surgical excision.