[Primary non-Hodgkin's malignant lymphoma of bone in 5 patients]

The authors report here 5 cases of primary non-Hodgkin's malignant lymphoma of bone. All bones of the body can be involved, but the commonly inflicted ones are pelvis and femur. This kind of lymphoma possesses no special clinical features and X-ray manifestation, so it is very difficult to be diagnosed and easily misdiagnosed. The diagnosis can be made with the following 5 items: (1) local significance; (2) X-ray manifestation; (3) bone origination; (4) the no proof of originating from other tissues; and (5) pathological examination. This kind of lymphoma is mainly treated with radiotherapy, and adjuvant surgical treatment and chemotherapy are sometimes given.