COLON
55 year old male with CRC screening.
Procedure: Left colon biopsy.
Micro: Sections show benign colon mucosa with mild nonspecific chronic inflammation.
Microscopic Photo. Rectal polyp biopsy showing proliferation of islands and sheets of monotonous cells in laminar propria. Surface denudation of colon mucosa is also noted. H&E Stain.
59-year-old male with hematochezia. Colon biopsy is performed and identified multiple mucosal and submucosal white spots.
46-year-old male with right colon (cecal) mass.
Procedure: Partial right colectomy.
Gross: The specimen consists of a resected cecum measuring 9 cm. in length with a maximal diameter of 6 cm.
Microscopic Photo. A tubular adenoma with proliferation of neoplastic tubules.
Microscopic photo. Rectal biopsy showing haphazardly arranged benign colonic crypts surrounded by fibroblasts and smooth muscle proliferation.
Microscopic Photo. Colon polyp with proliferation of supercicial hyperplastic crypts. The hyperplastic crypts are slightly dilated with serrated (saw tooth) or star-shaped appearance. H&E Stain.
