Abstract
Primary central nervous system lymphoma (PCNSL) is rare and accounts for 1 to 2% of all lymphomas. There are conflicting reports about the rise in incidence of PCNSL cases in the last two decades; this has largely been attributed to an increase in incidence of AIDS and other immunosuppressive states in some studies. This study was undertaken to view the trend of PCNSL at the Postgraduate Institute of Medical Education and Research, Chandigarh, which is a referral hospital in northern India. The PCNSL cases from our surgical material of 15 years (1985-1999) were reviewed. Slides were examined independently by three histopathologists. Immunophenotyping was done on paraffin-embedded tissue using indirect immunoperoxidase technique. Out of a total of 3,325 intracranial tumors diagnosed during this period (1985-1999), there were 40 cases (1.2%) of PCNSL; gliomas accounted for 1,531 cases (46.04%). The age ranged from 24-75 years with the sex ratio (M:F) being 2:1. HIV serology, available in 14 cases, was negative in all. The parietal lobe was the most common site of involvement. Diffuse large cell lymphoma was the most common morphological type. Immunohistochemistry could be done in 31 cases; 28 cases were found to be B-cell type wh...Continue Reading
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