Primary Multi-focal Central Nervous System Lymphoma Masquerading as a High-grade Insular Glioma - A Rare Case Report.

Ann Afr MedJul 7, 2026 (epub)

Ashish Chugh, Dipti Patil, Sarang Gotecha

✦ AI-curated · Sources linked

Case in brief

A 70-year-old immunocompetent woman had a large heterogeneous brain lesion with mass effect involving the insular cortex and perisylvian region. MRI findings initially suggested a high-grade glioma, prompting surgical resection. Histopathology and immunohistochemistry instead established primary CNS high-grade B-cell lymphoma with double expression of BCL2 and BCL6. The report describes the lesion’s atypical location and imaging appearance as a diagnostic challenge; tissue examination resolved the discrepancy and enabled recognition of lymphoma.

What made this case unusual

The lymphoma involved the insular and perisylvian regions and mimicked a high-grade glioma on imaging, rather than presenting in the deep cerebral structures where PCNSL typically arises.

Diagnostic / clinical pearl

An imaging impression of high-grade glioma may be misleading in an atypical PCNSL presentation; tissue diagnosis can establish the correct diagnosis.

Source

Published in Ann Afr Med. This summary was written by xxcode from the publication's abstract and metadata. It is not peer reviewed and is not a substitute for the original article. For clinical decisions, review the original publication.

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AI-generated summaries may contain errors or omissions. Verify clinically important information with the original publication.

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