External-Beam Radiotherapy Alone Management of Primary CNS Lymphoplasmacytic Lymphoma: A Vietnamese Case Report and Literature Review

Abstract

Dang Nguyen Van,1,2 Nghia Duong Van,1 Quang Le Van,1 Tung Ngo Thanh,2 To Ta Van3 1Department of Oncology, Hanoi Medical University, Hanoi, Vietnam; 2Department of Head and Neck Radiation Oncology, Vietnam National Cancer Hospital, Hanoi, Vietnam; 3Center of Pathology and Molecular Biology, Vietnam National Cancer Hospital, Hanoi, VietnamCorrespondence: Dang Nguyen VanDepartment of Oncology, Hanoi Medical University, 01 Ton That Tung Street, Dong Da District, Hanoi, 10000, VietnamTel [phone]Email [email protected]; [email protected]: Primary central nervous system (CNS) lymphoma is an uncommon non-Hodgkin disease limited to the CNS, and most cases are diffuse large B-cell lymphomas. Other pathologies, including lymphoplasmacytic lymphoma (LPL), are exceedingly rare and poorly understood. The clinical presentation of primary CNS LPL is diverse. It depends on the original site and the tumor’s extension. There is currently no consensus on a treatment strategy for this uncommon manifestation. To our knowledge, no previously published case was successfully treated with radiation therapy alone.Case Presentation: We present here a case of primary CNS LPL. A 46-year-old, previously healthy woman was presented with a worsening headache and lower extremity numbness. Multifocal enhanced masses were detected in an MRI with biopsy results consistent with LPL. A complete staging workup was performed with no evidence of systemic disease. The patient received external-beam radiotherapy alone and had a complete remission. After 2 years of follow-up, she remains disease-free.Conclusion: Radiation alone is a promising treatment option for primary CNS lymphoplasmacytic lymphoma.Keywords: lymphoplasmacytic lymphoma, primary CNS lymphoma, radiation therapy

Keywords

• lymphoplasmacytic lymphoma
• primary cns lymphoma
• radiation therapy.