The recent studies have already suggested that prophylactic or preventative chemotherapy or adjuvant chemotherapy used to treat patients with early stage breast cancer may increase the risk for leukemia in the treated patients.  A report published this year suggested that chemotherapy may increase risk of lymphoma in addition to leukemia.  According to the report, a patient after receiving breast cancer chemotherapy developed both secondary diffuse large B-cell lymphoma and leukemia.How breast cancer chemotherapy increases the risk of leukemia: Thoughts about a case of diffuse large B-cell lymphoma and leukemia after breast cancer chemotherapy. (David Liu)Bin Zhang, Xia Zhang, Minghuan Li, Li Kong, Xiaoqin Deng & Jinming Yu, Cancer Biology & Therapy, Volume 17, 2016 - Issue 2, Pages 125-128  Published online: 09 Feb 2016