Sessile Serrated Adenoma
Left: 62 year-old man undergoing colonoscopy for average risk screening. This pale 6 mm sessile polyp discovered in the ascending
colon proved to be a sessile serrated adenoma histologically.
Center and Right: Colonoscopy in a 49 year-old man undergoing average risk screening, revealed this 2-3 mm bland polyp, which grossly resembled the surrounding normal appearing mucosa. Histology was sessile serrated adenoma.
Left: Sessile polypoid 1 cm diameter lesion in a 57 year-old asymptomatic women undergoing screening colonoscopy for a family history of colon polyps. Lesion proved to be a serrated adenoma.
Right: 62 year-old man undergoing colonoscopy for average risk colon screening. This 6 mm sessile lesion in the ascending colon was a serrated adenoma histologically.
Left: 6 mm sessile lesion in the hepatic flexure of a 59 year-old undergoing screening colonoscopy for a family history of colon polyps. Histology revealed sessile serrated adenoma.
Center: 57 year-old woman with a prior history of colon polyps. This 6 mm sessile lesion in the hepatic flexure proved to be a sessile serrated adenoma.
Right: 59 year-old woman with a history of colon polyps. Colonoscopy revealed this 8 mm sessile lesion resembling a benign mucosal fold in the mid-ascending colon. The lesion was excised and histology indicated sessile serrated adenoma.
Left: 64 year-old woman undergoing colonoscopy to evaluate hematochezia and iron deficiency anemia. This 1.5 cm flat lesion resembling an enlarged, polypoid mucosal fold, proved histologically to be a sessile serrated adenoma.
Right: 63 year-old man with a history of colonic polyps. Colonoscopy revealed 5 tubular adenomas, as well as this 2 cm sessile polypoid fold in the proximal descending colon, which proved to be a serrated adenoma.
See also Traditional Serrated Adenoma
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