MIB-1 and MCM-2 immunohistochemical analysis does not aid in identification of serrated colorectal polyps with abnormal proliferation

Gray, D and Obermann, EC and Evans, M and Hartmann, Arndt and Cooper, K and Blaszyk, Hagen (2006) MIB-1 and MCM-2 immunohistochemical analysis does not aid in identification of serrated colorectal polyps with abnormal proliferation. AMERICAN JOURNAL OF CLINICAL PATHOLOGY, 125 (3). pp. 407-412. ISSN 0002-9173,

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Abstract

We investigated the staining characteristics of serrated polyps with abnormal proliferation (SPAP) using MIB-1 and MCM-2 to determine if the), could provide assistance in delineating SPAPs from traditional hyperplastic polyps (HPs). Using published morphologic criteria we reviewed H&E slides of 107 polyps from 80 patients. Thirty-nine (364%) polyps met the criteria,for SPAR Within a given region, polyps in the transverse colon had the largest percentage of SPAPs (50.0%) followed by the right colon (40.9%). The majority of SPAPs (82.1%) and HPs (72.1%) showed MIB-1 staining confined to the basal third of the crypts. The majority of SPAPs (59.0%) and HPs (52.9%) showed MCM-2 staining extending into the apical third of the crypts. We do not recommend MIB-1 or MCM-2 staining to differentiate SPAPs from conventional HPs, since staining characteristics are not significantly different between the 2 groups, and frequent variable crypt staining within a given polyp is difficult to interpret.

Item Type: Article
Uncontrolled Keywords: HYPERPLASTIC POLYPOSIS; NEOPLASIA; ADENOMAS; PATHWAY; COLON; hyperplastic polyp; serrated polyp; serrated reoplasia pathway; MIB-1; MCM-2
Subjects: 600 Technology > 610 Medical sciences Medicine
Divisions: Medicine > Lehrstuhl für Pathologie
Depositing User: Dr. Gernot Deinzer
Date Deposited: 18 Feb 2021 08:03
Last Modified: 18 Feb 2021 08:03
URI: https://pred.uni-regensburg.de/id/eprint/34799

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