Sessile adenomas 2
Malignant sessile polyp with unfavorable histologic features. This sessile polyp is totally replaced by invasive moderately differentiated adenocarcinoma, partially mucinous, (polypoid carcinoma). The carcinoma extends to the cautery margin. A segmental resection performed revealed no residual carcinoma at the excision site but metastatic adenocarcinoma was present in several of the regional lymph nodes.
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This image is taken from Sidney J. Winawer & Michael O'Brien. Chapter 5, In Colonscopy, Advanced Digestive Endoscopy e-books. GastroHep.com.
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