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[Primary malignant lymphoma of the brain]
1Abteilung Klinische Neuroradiologie, Universität Heidelberg.
Der Radiologe
|January 1, 1997
Summary
Primary malignant brain lymphoma is a growing disease with poor outcomes. Early diagnosis via imaging and biopsy, followed by radiation therapy, improves patient prognosis.
Area of Science:
- Neurology
- Oncology
- Radiology
Context:
- Primary malignant brain lymphoma (PMBL) is a rare and aggressive central nervous system malignancy.
- Its incidence is increasing, yet its etiology remains unknown.
- PMBL presents a diagnostic challenge due to nonspecific imaging findings.
Purpose:
- To review the typical imaging features of PMBL on computed tomography (CT) and magnetic resonance imaging (MRI).
- To highlight the role of advanced imaging techniques in diagnosing PMBL.
- To emphasize the importance of early diagnosis and treatment for improved patient outcomes.
Summary:
- Focal-enhancing masses with subependymal spread on CT/MRI and hyperattenuation on nonenhanced CT are key diagnostic indicators for PMBL.
- While peritumoral edema and mass effect are typically minimal, characteristic signal intensities are observed on T1, PD, and T2-weighted MRI sequences.
- Contrast-enhanced MRI offers superior detection of subependymal spread and meningeal involvement compared to CT.
Impact:
- Early and accurate diagnosis of PMBL is crucial for timely intervention.
- Biopsy confirmation followed by whole-brain radiation therapy can significantly improve the prognosis for patients with PMBL.
- This review aids clinicians in recognizing PMBL on neuroimaging, facilitating prompt management and potentially improving survival rates.