Classification of Colorectal Polyps: Guidelines for the Endoscopist

Introduction

Polyp is a Greek word used to denote a protruding excrescence linked to a mucous membrane by a pedicle. Today we know that the pedicle evolves as a result of peristaltic activity which projects forward a protruding polyp of substantial size growing on loose submucosal tissue. On the basis of clinical data, colorectal polyps are classified as sporadic or hereditary. Sporadic colorectal polyps evolve after environmental insults of long duration. Consequently they are age-related and often seen in older patients. Polyps generated as a result of a genetic predisposition, are often found in younger patients.

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