The concurrence of histologically positive resection margins and sessile morphology is an important risk factor for lymph node metastasis after complete endoscopic removal of malignant colorectal polyps.

Introduction: The optimal procedure to be followed after colonoscopic polypectomy of malignant colorectal polyps with nontumour-free resection margins at histology is a matter of controversy. While some authors recommend merely local or segmental follow-up resection, others favour an oncological resection.

Patients And Methods: One hundred five patients, each with a single malignant polyp, were investigated.