A rare case of Salmonella-mediated sacroiliitis, adjacent subperiosteal abscess, and myositis.

We report the case of a 16-year-old female who was ultimately diagnosed with Salmonella sacroiliitis, adjacent subperiosteal abscess, and myositis of the left iliopsoas, gluteus medius, and obturator internus muscles. Early and accurate recognition of this syndrome and other infectious musculoskeletal syndromes can prove difficult for the emergency physician, as these disease processes require special attention to pain of proportion to physical findings and a high index of suspicion.