《英文msh词典》Tumor,Burkitt
[入口词] Tumor,Burkitt
[主题词] Burkitt Lymphoma
[英文释义] A form of undifferentiated malignant lymphoma usually found in central Africa,but also reported in other parts of the world. It is commonly manifested as a large osteolytic lesion in the jaw or as an abdominal mass. B-cell antigens are expressed on the immature cells that make up the tumor in virtually all cases of Burkitt lymphoma. The Epstein-Barr virus (HERPESVIRUS 4,HUMAN) has been isolated from Burkitt lymphoma cases in Africa and it is implicated as the causative agent in these cases; however,most non-African cases are EBV-negative.