Rectal cancer status post chemoradiation therapy. PELVIS:PROSTATE/SEMINAL VESICLES: No significant abnormality noted.BLADDER: No significant abnormality noted.LYMPH NODES: The reference lymph node at the level of the rectosigmoid junction on the left measures 2 mm in short axis (series 5/45), compared to 3 mm previously.BOWEL, MESENTERY: Diverticulosis. Small volume of fluid in the left pericolic gutter and adjacent to the bladder dome.Demonstrated again in the low/mid rectum is a region of very low T2-weighted signal intensity involving approximately 90 degrees of the left lateral rectal wall mucosa/submucosa compatible with post-treatment related fibrotic scarring. The region of signal abnormality measures approximately 1.5 x 8 mm (series 5/26) in cross-section, compared to 1.6 x 0.9 cm previously. No measurable discrete intermediate T2-weighted signal abnormality, focal postcontrast enhancement or restricted diffusion. No evidence of extramural extension.No enlarged mesorectal lymph nodes.BONES, SOFT TISSUES: No significant abnormality noted.OTHER: No significant abnormality noted.
1.Mild interval decrease in size of posttreatment residual of the rectal mass with imaging characteristics suggestive of post radiation scar tissue without residual restricted diffusion or appreciable focal postcontrast enhancement.2.No enlarged pelvic lymphadenopathy, appearing similar to the prior. Small amount of free fluid in the pelvis.