The space between: a supralevator abscess caused by perforated diverticulitis.

Supralevator abscesses are the rarest manifestation of anorectal suppurative disease. We report a supralevator abscess in a 60-year-old male whose earliest presentation included poorly localized abdominal and pelvic pain, tenesmus, urinary retention and weight loss, initially treated as diverticular disease based upon imaging and presentation. Progressive symptoms led to the discovery of a pelvic abscess with subsequent percutaneous drainage, later followed by emergent laparotomy, where a single perforated diverticulum was revealed to be the source fistulization.

5-aminosalicylic acid inhibits colitis-associated colorectal dysplasias in the mouse model of azoxymethane/dextran sulfate sodium-induced colitis.

Background: The impact of the antiinflammatory agent 5-aminosalicylic acid (5-ASA) on the risk for colitis-associated colorectal cancer remains controversial. The chemopreventive activity of 5-ASA was evaluated in the Swiss Webster model of azoxymethane (AOM)/dextran sulfate sodium (DSS)-induced colitis-associated neoplasia.

Methods: Mice were injected with AOM (7.

Generation of a unique strain of multiple intestinal neoplasia (Apc(+/Min-FCCC)) mice with significantly increased numbers of colorectal adenomas.

The relevance of the Apc(+/Min) mouse model in the study of human colorectal cancer remains uncertain due to the predominance of small intestinal adenomas and few, if any, colorectal adenomas. A new strain of Apc(+/Min) mice (Apc(+/Min-FCCC)) with significantly greater numbers of colorectal adenomas has been generated and characterized. Male C57BL/6J-Apc(+/Min) mice (the Jackson Laboratory, Bar Harbor, ME) were crossed with wild-type (Apc(+/+)) C57BL/6J females from an independent colony at this institution (offspring=Apc(+/Min-FCCC)) and 233 animals were evaluated over 20 generations.