Evaluating EBV Association in Lymphomas Using LMP1 and EBER-CISH: A Histopathological Study in 100 Cases from North India
摘要
Globocan 2022 ranks Non-Hodgkin Lymphoma (NHL) as the 10th and Hodgkin Lymphoma (HL) as the 26th most common malignancies globally, accounting for 3.23% of all cancers. In India, NHL and HL rank 10th and 25th, respectively, at 3.3% of malignancies. In developing countries, many lymphomas have an EBV-induced pathogenesis. This study aimed to detect EBV infection in lymphomas and examine its association with clinicopathological parameters in a North Indian population. The cohort included histologically confirmed, treatment naive 33 HL and 67 NHL cases. EBV was detected using chromogenic in situ hybridization (CISH) and LMP1 immunohistochemistry (IHC). A case was considered harbouring the infection when EBV was detected by either of the methods. The patient cohort was predominantly male (64%). HL was localized to lymph nodes, while NHL often involved extranodal tissues, gastrointestinal tract being the most common site. HL was rare in adults, whereas NHL predominantly affected the elderly. Among the HL cases, 26/33 (78.8%) were associated with EBV, with Nodular sclerosis subtype being the most infected, while 32/67 (47.8%) NHL showed EBV association, with the highest prevalence in Burkitt’s Lymphoma. EBV infection was significantly higher in HL compared to NHL (p = 0.006). There was no association of EBV infection with age or gender in HL. In NHL, EBV infection was significantly associated with female gender (p < 0.001) but not with age of the patients. The high prevalence of EBV infection in lymphomas suggests its role in pathogenesis and highlights the potential for preventive strategies, such as vaccination against Epstein-Barr Virus. This dual-modality evaluation provides original data on EBV detection trends in both Hodgkin and Non-Hodgkin lymphomas and highlights the diagnostic applicability of LMP1-IHC as a practical alternative in resource-limited settings.