Two Unusual Cases of External Rotator Muscle Pathology Producing Hip Pain
Two unusual cases of inflammation of the external rotator muscles of the hip are presented. In each case, the patient presented with acute hip pain. The diagnoses of acute calcific periarthritis involving the gluteus medius muscle, and pyomyositis of the obturator internus muscle secondary to a perianal fistula, were made with the aid of diagnostic imaging and histology. The importance of reviewing the pelvic viscera is highlighted.