MYCOPLASMA FELIS SEPTIC ARTHRITIS IN A PATIENT WITH HYPOGAMMAGLOBULINEMIA

We describe the first documented case of Mycoplasma felis infection in a woman who had common variable immunodeficiency and who presented wi th septic arthritis of the left hip and right knee. M. felis was isola ted from both joints. She had been exposed to cats before the diagnosi s of M. felis septic arthritis was made, Both of the patient's joints were surgically debrided, and she was treated with doxycycline for sev eral months. In spite of initial improvement, destruction of her hip w as noted, Subsequently, she underwent hip arthroplasty; histopathologi cal examination of the bone at the time of surgery showed chronic oste omyelitis, and doxycycline therapy was continued.