Microscopic examination of the submitted rectosigmoid colon sections shows colonic mucosa, submucosa, muscularis propria, and subserosal adipose tissue. Thorough evaluation of the submucosal (Meissner's) and myenteric (Auerbach's) neural plexuses reveals the presence of morphologically normal ganglion cells. There is no evidence of hypertrophied nerve trunks. The overlying colonic mucosa exhibits preserved crypt architecture with no significant active inflammation, ulceration, or mucosal architectural distortion. No dysplasia or malignancy is identified. Dissected lymph nodes (thirteen) exhibit reactive lymphoid hyperplasia, with no evidence of metastatic disease.
Constipation, suspected Hirschsprung disease.
Received is a rectosigmoid colon specimen measuring 14 x 3 x 2 cm, with attached fat measuring 5.8 x 2 cm. Upon opening, the mucosa was unremarkable, showing no gross evidence of a mass or ulceration. Dissection of the attached mesenteric fat revealed multiple lymph nodes, the largest of which measured 1 cm in maximum dimension.
Rectosigmoid colon, resection: