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Histological study of macroscopically normal mucosa adjacent to tumour in colorectal resection specimens

Authors:

RMUS Ratnayake ,

University of Kelaniya, LK
About RMUS
Department of Pathology, Faculty of Medicine
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SJDeS Hewavisenthi

University of Kelaniya, LK
About SJDeS
Department of Pathology, Faculty of Medicine
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Abstract

Objective: To study the histological features of macroscopically normal mucosa in colorectal carcinoma specimens and attempt to correlate the severity of these changes and the distance of the mucosa from the tumour.

Method: Ninety three resection margins from 52 specimens were categorized according to the distance from the tumour, 0-1cm, 1.1-5cm and more than 5cm. The histological parameters assessed included, lymphoid aggregates, acute inflammation, chronic inflammation, crypt distortion and villous change. These were graded as absent, mild, moderate and severe. The presence of intraepithelial lymphocytes, cystically dilated ducts and epithelial erosions were recorded as absent or present. Results were analyzed using Pearson Chi- square test and Fischer-Exact statistics.

Results: The histological features found included, lymphoid aggregates in 40% acute inflammation in 15% chronic inflammation in 16% crypt distortion 17%, cystically dilated glands 21%, epithelial erosion 13% and villous change 32%. The presence of cystically dilated glands showed a significant correlation with the distance from the tumour.

Conclusion: Varied histopathological features were observed in the mucosa adjacent to the tumour, awareness of which can prevent misinterpretation and over diagnosis of these features.

DOI: http://dx.doi.org/10.4038/jdp.v7i1.5594

Journal of Diagnostic Pathology 2012 (7); 1: 33-41

How to Cite: Ratnayake, R. & Hewavisenthi, S., (2013). Histological study of macroscopically normal mucosa adjacent to tumour in colorectal resection specimens. Journal of Diagnostic Pathology. 7(1), pp.33–41. DOI: http://doi.org/10.4038/jdp.v7i1.5594
Published on 22 May 2013.
Peer Reviewed

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