Sessile Tubular Adenoma
Left: 81 year-old woman undergoing colonoscopy for polyp surveillance. This small polypoid nodule, histologically found to be a true adenoma, is grossly identical in appearance to a hyperplastic polyp. All such lesions should be removed for histologic analysis.
Right: 75 year-old woman with occult gastrointestinal bleeding. Colonoscopy revealed this small, sessile, multilobulated lesion which proved to be a benign tubular adenoma.
Left: 44 year-old woman with gastrointestinal bleeding. This smooth polyp on a broad base proved to be a tubular adenoma.
Right: 47 year old man with occult bleeding and anemia. This sessile polyp had an inflamed, ulcerated appearance worrisome for possible malignancy, but proved to be a benign tubular ademona. Interestingly, the same patient also had a smooth pedunculated polyp which appeared benign, but which was actually malignant.
Unusual flat, umbilicated mucosal lesion in a 74 year-old man. Biopsies revealed this lesion to be a tubular adenoma.
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