Indian Journal of Pathology and Oncology

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IP Innovative Publication Pvt. Ltd.

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Clinicopathological study of urothelial neoplasms in urinary bladder with special reference to expression of Her2/neu and Ki-67 in malignant lesions

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Original Article

Author :

Ayesha Abid, Sarmila Sen*, Ranjana Bandyopadhyay

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Abstract :

Background: Urothelial carcinomas are the fourth most common tumors worldwide. Studies have shown that Her2/neu is associated with increased tumour grade and Ki?67 is related to tumour recurrence and stage progression. As no such study has been undertaken is this region, the present study was aimed to establish Her2/neu and Ki-67 as novel prognostic markers of urothelial neoplasms. Aims and Objectives: To evaluate the clinical profile of urothelial neoplasms and correlate the expression of Her2/neu and Ki-67 in urothelial carcinomas. Settings and Design: Observational and cross-sectional study (January 2018-May 2019) in a tertiary care hospital in Eastern India. Materials and Methods: 40 specimens of urothelial neoplasms were studied. Clinical history of patients was collected. Microscopic examination was done to assess tumour stage and histological grade. Immunohistochemistry with Her2/neu and Ki-67 was performed. Analysis: Statistical Package for the Social Sciences SPSS (version 20.0, IBM, Chicago, IL, USA) for windows software. Results: 8 cases were diagnosed as low grade non-invasive urothelial carcinoma, 31 cases as infiltrating urothelial carcinoma and 1 case as papillary urothelial neoplasm of low malignant potential (PUNLMP). 96.8% of infiltrating carcinomas and 87.5% of low grade non-invasive carcinomas showed Ki-67 positivity. Moderate-to-strong Her2/neu over[removed]2 or 3 ) was observed in only 21% of the cases. Conclusion: The expression of Ki-67 increased with increase in the grade of the tumour which was suggestive of the prognostic importance of Ki-67. Her2/neu positivity was seen in infiltrating cases. No significant association between the tumor grade and Her2/neu expression, indicated the need for further studies with a larger population group.

Keyword :

Her2/neu, Ki- 67, Urothelial neoplasms.

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