Colonic mucosa shows focal ulceration with devitalization of mucosa and dense infiltration by neutrophils, lymphocytes, and plasma cells. Inflammation extends to the serosa and pericolonic fat (localized peritonitis). The rest of the mucosa, including the resection margins, is negative for tumors. No evidence of specific granulomas. No evidence of malignancy.
The patient presented with wound dehiscence post appendectomy with previous resection of part of the colon due to suspected malignancy.
Transverse colon segmental resection measured 7 cm long. Careful inspection did not reveal any gross mass or ulceration. representative section were submitted.
Transverse colon, segmental resection: