Extra-nodal non-Hodgkin's lymphomas: a morphological study of 23 patients.

A morphological study of 23 cases of extra-nodal non-Hodgkin’s lyniphomas is presented. The disease was most prevalent in the second decade (30.4%), followed by fourth and fifth decades (26.1%) and seventh decade of life (13 .1%), respectively. The male: female ratio was 1.1:1. The commonest primary site of lymphoma was bones, followed by pharynx, skin and other organs. Histologically, according to W.H.O.’s classification of lymphomas (1978), lymphoblastic lymphosarcoma was the commonest (65%), followed by reticulosarcoma (18.8%) and lymphocytic lymphosarcoma (8.7%). Burkitt’s lymphosarcoma and Mycosis fungoides were the least common (4.3% each). (JPMA 32:72, 1982).