COMPARISON OF EXPRESSION OF E-CADHERIN IN ORAL PSEUDOEPITHELIOMATOUS HYPERPLASIA AND ORAL SQUAMOUS CELL CARCINOMA

Ayesha Mukhtar Awan, Iram Naz, Muhammad Khurram Mahmood, Hafeez Uddin

Abstract


Background: Pseudo-epitheliomatous Hyperplasia (PEH) is a benign proliferation of epithelium occurring in response to various neoplastic lesions, infections and inflammatory processes. It can be mistaken especially in small biopsies for an invasive oral squamous cell carcinoma (OSCC). The objective of this study was to determine the expression and comparison of immunohistochemical marker E-cadherin in OSCC and PEH lesions.
Materials & Methods: This cross-sectional study was conducted in Department of Histopathology, Armed Forces Institute of Pathology, Rawalpindi, Pakistan from January 2013 to March 2016. 60 paraffin embedded cases, 30 each of PEH and OSCC were retrieved and stained with haematoxylin and eosin. They were then immune-stained with E-cadherin and expression evaluated and compared in two lesions by histopathologist. Age, sex, site of lesion and E-cadherin expression were variables. Age was described by mean and SD and other variables as frequency and percentages.
Results: Mean age of OSCC group was 60.1±17.3 years and PEH group 52.7±16.6 years. OSCC group included 16 (53.33%) men and 14 (46.67%) women. PEH group included 18 (60%) men and 12 (40%) women. In OSCC group, site of lesion was buccal mucosa 12 (40%) cases, gingiva 10 (33.3%), tongue 7 (23.3%) and floor of mouth 1 (3.4%) case. In PEH group, site of lesion was buccal mucosa 12 (40%) cases, tongue 11 (36.67%), gingiva 6 (20%) and palate 1 (3.3%) case.
The expression of E-cadherin was negative in all 30 cases of OSCC and positive in 29/30 (96.67%) cases in PEH.
Conclusion: E-cadherin can be used as an ancillary marker in the differentiation of oral squamous cell carcinoma and pseudo-epitheliomatous hyperplasia.

Keywords


Pseudo-epitheliomatous Hyperplasia; Squamous cell carcinoma; E-Cadherins; Immunohistochemistry; Cancer biomarkers; Monoclonal antibodies.

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DOI: https://doi.org/10.46903/gjms/17.03.1967

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