<s>[INST] my brother had 2 tumors removed a week ago he was told he has diffuse large b cell Lymphoma,he went to cancer dr yesterday they said side of his face and nck was loded again.they r doing a serious of test.i feel this isn t good do to how fast they returned am I looking at this in a wrong way?also if his cancer is eally bad can his bone marrow be reused inself,or will it take someone elses?Thank You [/INST] Hi,Removal of the tumor was only for diagnosis of the diffuse large b call lymphoma(DLBCL),I think.DLBCL needs proper staging including bone marrow examination.It is treated with chemotherapy usually. </s>