53-year-old female status post sacral muscle flap reconstruction now presents with sacral pain. Evaluate for sacral osteomyelitis or abscess. Postsurgical changes and scar tissue are noted in the posterior pelvic soft tissues and anterior pelvic wall. Interspersed metallic fragments likely represent surgical clips. While these areas of scarring demonstrate peripheral enhancement on post-contrast images, there is no evidence of edema or abnormal enhancement within the bone marrow. Bone marrow signal is within normal limits on T1-weighted images. No focal fluid collection to suggest abscess formation.
Postsurgical changes and scarring as described above without evidence of sacral osteomyelitis or abscess.