ABSTRACT
To evaluate the Clinicopathological analysis of extranodal Non-Hodgkin Lymphoma [NHLs] reported in Armed Forces institute of Pathology [AFIP] Rawalpindi, Pakistan. Record of a total of 206 cases of extranodal NHLs diagnosed between January 2009 to December 2010 was retrieved from AFIP tumour registry. Basic epidemiological data regarding each case was collected from the request forms. The specimens were received in 10% formal saline. Gross examination of surgical specimens was performed arid recorded on a proforma. The material was processed under standardized conditions for paraffin embedding. The sections were stained with hematoxylin and eosin [H/E]. Immunohistochemistry panel was applied for the categorization of the lymphomas according to the 2008 WHO guidelines. Data was entered and analysed on SPSS version 14. Out of 206 cases, 147 [71.3%] were males and 59 were females [28.6%]. Male to female ratio was 2.4:1. The age ranged between 7-99 years. The most commonly affected age group was the 5[th] decade with 40 cases [19,4%], The most commonly involved site was head and neck, 85 cases [41.2%], followed by the GIT, 61 cases [29.6%]. Diffuse large B-cell lymphoma [DLBCL], was the most common histologic type, 165 cases [80%].Diffuse large B-cell lymphoma is the most common extranodal Non Hodgkin lymphoma, in our population