62-year-old woman with history of rectal pain and pelvic mass. PELVIS:UTERUS, ADNEXA: The patient is status post hysterectomy and a small focus of air is seen in the vaginal cuff.BLADDER: The bladder is unremarkable and there is no evidence of bladder wall invasion by the rectal mass.LYMPH NODES: No significant lymphadenopathy noted.BOWEL, MESENTERY: Approximately 3.1 cm superior to the anal verge, there is a 5.0 x 4.2 cm lobulated, enhancing mass within the rectum. This mass abuts but does not appear to invade the levator ani muscles. There is questionable invasion of the right mesorectal fascia (series 701, image 18). The proximal bowel appears normal in caliber.BONES, SOFT TISSUES: A 15 x 16 mm Tarlov cyst is noted.OTHER: No significant abnormality noted.
Multilobulated rectal mass, likely carcinoma, with possible invasion of the right mesorectal fat and fascia.