Female, 41 years old. Flank+groin pain. Rectal cancer. Evaluate for osseous metastases. There are diffuse marrow changes predominantly affecting the sacrum, compatible with prior radiation therapy. No focal abnormal signal or enhancement within the bony pelvis and proximal femurs to suggest osseous metastases. No fracture is identified. There is mild diffuse muscle atrophy. The remainder of the pelvic soft tissues are unremarkable.Residual rectal wall thickening is compatible with tumor as seen on prior studies. Small pelvic lymph nodes are identified. The other imaged intra-abdominal/pelvic structures are grossly unremarkable.
No evidence of osseous metastases.