Sacrococcygeal decubitus ulcer. Evaluate for osteomyelitis. There is soft tissue edema, fluid, and enhancement posterior to the sacrum with a 7 cm wide right paramedian gas-filled defect compatible with ulceration. This region of abnormal signal extends to the sacrum, with a focus of low T1 signal and enhancement of the medial crest of the sacrum near the sacral hiatus, compatible with osteomyelitis. No drainable fluid collection is noted. Small bilateral hip joint effusions are noted. The pelvic musculature is atrophic. A bladder catheter is in place. A small amount of non-specific pelvic free fluid is noted. There is partially visualized enhancement about the anus.
Sacral osteomyelitis, as described above.