Primary central nervous system (CNS) extranodal marginal zone B-cell lymphoma (MZBL) is a rare low-grade non-Hodgkin lymphoma, characterised predominantly by small B cells, plasma cells, monocytoid cells and scattered large immunoblasts. Primary CNS MZBL is a slow-growing tumour that remains localised and is characterised by an excellent clinical prognosis. The present study describes the case of a 48-year-old HIV-negative female patient with a history of head trauma 1 year prior, who presented with worsening neurological symptoms and a magnetic resonance imaging finding of a ∼3-cm extra-axial mass within the left lateral ventricle. From histopathology and immunohistochemistry, the lesion was diagnosed as a CNS MZBL; as no other primary lesions were found, the base of the choroid plexuses of the left lateral ventricle was considered the primary site. To the best of our knowledge, the current case is the first study to report on primary CNS MZBL arising in this anatomical site and paves the way for further studies on the role of chronic inflammation (in the present case resulting from trauma) in the pathogenesis not only of primary CNS MZBL but also of lymphoma in general. Additionally, this report could serve as a starting point for studies analysing the role of meningothelial cells in the pathogenesis of primary CNS MZBL.

Fiorentino, V., Pizzimenti, C., Pierconti, F., Lentini, M., Ieni, A., Caffo, M., Angileri, F., Tuccari, G., Fadda, G., Martini, M., Larocca, L. M., Unusual localization and clinical presentation of primary central nervous system extranodal marginal zone B-cell lymphoma: A case report, <<ONCOLOGY LETTERS>>, 2023; 26 (3): N/A-N/A. [doi:10.3892/ol.2023.13994] [https://hdl.handle.net/10807/272799]

Unusual localization and clinical presentation of primary central nervous system extranodal marginal zone B-cell lymphoma: A case report

Pierconti, Francesco;Larocca, Luigi Maria
2023

Abstract

Primary central nervous system (CNS) extranodal marginal zone B-cell lymphoma (MZBL) is a rare low-grade non-Hodgkin lymphoma, characterised predominantly by small B cells, plasma cells, monocytoid cells and scattered large immunoblasts. Primary CNS MZBL is a slow-growing tumour that remains localised and is characterised by an excellent clinical prognosis. The present study describes the case of a 48-year-old HIV-negative female patient with a history of head trauma 1 year prior, who presented with worsening neurological symptoms and a magnetic resonance imaging finding of a ∼3-cm extra-axial mass within the left lateral ventricle. From histopathology and immunohistochemistry, the lesion was diagnosed as a CNS MZBL; as no other primary lesions were found, the base of the choroid plexuses of the left lateral ventricle was considered the primary site. To the best of our knowledge, the current case is the first study to report on primary CNS MZBL arising in this anatomical site and paves the way for further studies on the role of chronic inflammation (in the present case resulting from trauma) in the pathogenesis not only of primary CNS MZBL but also of lymphoma in general. Additionally, this report could serve as a starting point for studies analysing the role of meningothelial cells in the pathogenesis of primary CNS MZBL.
2023
Inglese
Fiorentino, V., Pizzimenti, C., Pierconti, F., Lentini, M., Ieni, A., Caffo, M., Angileri, F., Tuccari, G., Fadda, G., Martini, M., Larocca, L. M., Unusual localization and clinical presentation of primary central nervous system extranodal marginal zone B-cell lymphoma: A case report, <<ONCOLOGY LETTERS>>, 2023; 26 (3): N/A-N/A. [doi:10.3892/ol.2023.13994] [https://hdl.handle.net/10807/272799]
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