Pelvic digit

Abstract

Pelvic digit is an unusual developmental anomaly in which bone develops in soft tissues adjacent to normal skeletal bone. It is an asymptomatic entity that is usually discovered incidentally. The importance of recognizing pelvic digit is in distinguishing it from post-traumatic ossification and avulsion injuries of the pelvis. We report pelvic digits discovered in plain films of two patients who presented with hip pain. One patient has accompanying femoroacetabular impingement on the same side, which may explain the presence of hip pain.