Biological Findings and Clinical Outcomes in Patients Treated With R-CHOP Plus High-Dose Methotrexate as First-Line
R Liévin1,2, B Burroni3, E Balducci4
1Clinical Hematology Department, AP-HP, Hôpital Cochin, Université de Paris, Paris, France.
Abstract:
Primary testicular lymphoma (PTL) is a rare occurrence of diffuse large B-cell lymphoma (DLBCL) that accounts for 1%-2% of all cases. Nodal DLBCL with testis involvement (DLBCL-T) and PTL are associated with poor prognosis, with high incidence of central nervous system relapse. Fifteen patients (median age 60 years) with PTL (n = 5) or DLBCL-T (n = 10) received high-dose methotrexate + R-CHOP. Overall, complete response (CR) rate was 73% and overall response rate 86%. With a 3.9-year median follow-up, 100% of patients with PTL had CR and none relapsed. On the contrary, 55% of DLBCL-T patients achieved CR among which only one was still in remission at the end of follow-up. Molecular parallels between PTL and Primary CNS Lymphoma (PCNSL) suggest shared origins, urging further research for tailored treatments and enhanced understanding of these lymphomas' biology.
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