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A cerebral lymphoma mimicking a meningioma: case report

INTRODUCTION: Cerebral lymphoma is a rare and aggressive brain tumor. It accounts for 1% of all non-Hodgkin’s lymphomas (NHL) and 2% of all brain tumors. Untreated brain lymphoma has a very poor prognosis, with an overall life expectancy of around 1.5 months. CASE PRESENTATION: The authors report th...

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Detalles Bibliográficos
Autores principales: Joudar, Imane, Nasri, Siham, Aichouni, Narjisse, Kamaoui, Imane, Skiker, Imane
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Lippincott Williams & Wilkins 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10553179/
https://www.ncbi.nlm.nih.gov/pubmed/37811052
http://dx.doi.org/10.1097/MS9.0000000000001126
Descripción
Sumario:INTRODUCTION: Cerebral lymphoma is a rare and aggressive brain tumor. It accounts for 1% of all non-Hodgkin’s lymphomas (NHL) and 2% of all brain tumors. Untreated brain lymphoma has a very poor prognosis, with an overall life expectancy of around 1.5 months. CASE PRESENTATION: The authors report the case of a 35-year-old patient, with no previous pathological history, who presented for 3 weeks with deafness and recently aggravated otalgia. In MRI, brain imaging revealed a formation initially suggestive of an aggressive meningioma, and the histological study of the operative specimen was in favor of a diffuse large-cell non-germ-center B NHL. CLINICAL DISCUSSION: Primary central nervous system lymphoma is an extra-nodal NHL localized to the brain, meninges, spinal cord, and eyes. In 90% of cases, these are diffuse large B-cell lymphomas, the other types being poorly characterized low-grade lymphomas, T-cell lymphomas, and Burkitt’s lymphomas. MRI with gadolinium contrast is the gold standard for diagnosis which enhancement is homogeneous and well-limited, frequently associated with perilesional vascular edema. In T2-weighted sequences, there is a weak signal with restricted diffusion on diffusion-weighted imaging. The management of brain lymphoma is currently based on chemotherapy with high-dose methotrexate combined with the other agents, mainly rituximab. CONCLUSION: Cerebral lymphoma remains a non-negligible entity of central nervous system tumors, which can be confused with several other tumors, mainly glial and meningioma.