75 years, Female, Reason: hx of colorectal cancer History: hx of colorectal cancer. PELVIS: UTERUS, ADNEXA: Right sided Bartholin's gland cyst.BLADDER: No significant abnormality notedLYMPH NODES: No lymphadenopathy.BOWEL, MESENTERY: Postsurgical changes of prior colonic resection with artifact related to surgical clips seen on CT.Presacral edema and inflammatory changes are slightly decreased in the prior exam. There is also edema within the piriformis muscles bilaterally. There is diffuse circumferential rectal wall thickening, diffusion restriction and mucosal enhancement without a discrete enhancing mass.BONES, SOFT TISSUES: There are bilateral regions of linear decreased T1 and increased T2 signal within the sacrum which are most suggestive of sacral insufficiency fractures.OTHER: No significant abnormality noted
1.Abnormal signal within the sacrum bilaterally is suggestive of sacral insufficiency fractures.2.Diffuse circumferential rectal wall thickening, diffusion restriction and enhancement may suggest a nonspecific inflammatory process, however no discrete enhancing mass is identified.3.Presacral edema and inflammation may be related to posttreatment changes.