Primary extranodal lymphoma of the mandible and maxilla

12 cases with maxillary and mandibular manifestations of non Hodgkin's lymphoma have been studied with reference to age, sex, location of the lesion and the histologic type. There were 3 children ranging in age from 2 to 5 years and 9 adults ranging from 20 to 75 years. There is a male preponderance M/F ratio 10/2. All cases examined were of B cell origin. Different histological patterns were detected 4 cases [33.4%] showed Burkitt's Lymphoma, 3 cases [25%] showed small lymphocytic lymphoma and [25%] showed mixed cell pattern. 2 cases [16.6%] showed large cell type. No cases of Hodgkin's lymphoma nor nodular type of non Hodgkin's lymphoma were detected