Assessment of information value of targeted biopsy and endoscopic removal of colorectal polyps

Abstract

This research is based on histological investigation of targeted biopsy material and resected polyps’ at 354 patients who applied to National Center of Oncology from 2005 to 2010. All patients underwent targeted biopsy at first with subsequent endoscopic polypectomy and 494 polyps were removed and histologically investigated. The most prevalence type was tubular polyp — 212 (43 %) cases. The rest types of polyps were distributed as follow: tubule-villous type — 125 (25.3 %), villous type — 16 (3.2 %), inflammatory type — 28 (5.7 %), hyperplastic type — 40 (8.1 %), hamartoma type — 21 (4.3 %) cases. In 52 (10.4 %) cases malignant polyps were revealed.Sensitivity of targeted biopsy in iagnostics of dysplasia was 65.1 % while in revealing of malignancy was even lower — just 36.5 %. So we consider performing of endoscopic polypectomy and histological evaluation of resected polyps in all case even after previous targeted biopsy.

Keywords

• colorectal polyp
• targeted biopsy
• endoscopic polypectomy