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Diffuse Large B Cell Lymphoma Coexistent with Follicular Cell Lymphoma by Ling Zhang, Xiaozhen Wang, Na Cheng, Jingwen Zhang, Zhigang Fang, Bing Long, Dongjun Lin

Background: Diffuse large B cell lymphoma (DLBCL) and follicular cell lymphoma (FL) synchronously occurring in the same individual is unusual. The authors describe a rare case of DLBCL coexisting with FL at diagnosis in a male patient, with intestinal and lymph node involvement.
Methods: Hematologic investigation, intestinal tumor biopsy, bone marrow examination, cytogenetic analysis, and PCR were performed.
Results: The patient received three courses of R-CHOP regimen chemotherapy, the mesentery lymph nodes were reduced to 2.7 x 1.4 cm compared to 5.4 x 5.0 cm at diagnosis. However, the mesentery lymph nodes were increased to 4.7 x 3.5 cm after four additional courses R-CHOP treatment. Unfortunately, the patient refused chemotherapy treatment or hematopoietic stem cell transplantation (HSCT) and was lost to follow-up.
Conclusions: The presence of DLBCL coexisting with FL at diagnosis is rare and has generally been the subject of isolated case reports. Further studies are required to better understand the biological insights of the disease and to propose an optimal management strategy for this type of lymphoma.

DOI: 10.7754/Clin.Lab.2018.180320