Factors favoring surgery after polypectomy
Malignant pedunculated polyp with unfavorable histologic features. The head of this pedunculated villous adenoma is extensively replaced by poorly differentiated adenocarcinoma (a, b). In addition, invasion of lymphatics in the pedicle by invasive adenocarcinoma is present (detail in c).
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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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