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학술저널

궁륭부 수막종으로 오인된 원발성 중추신경계 림프종

Primary central nervous system lymphoma misdiagnosed as convexity meningioma: A case report

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대한두개저학회지 제18권 제1호.jpg

We are reporting the case of a 56-year-old female patient who presented with headache, nausea, and vomiting. Magnetic resonance imaging (MRI) revealed a homogeneous enhancing mass on the left frontal lobe. Based on the impression of a convexity meningioma, surgical treatment was planned, and intravenous (IV) steroids were administered to alleviate brain edema. Additional brain MRI was performed just before surgery for intraoperative navigation, which showed a significant reduction in tumor size. Due to the good response to IV steroids, we suspected that the tumor might be a differ-ent lesion rather than a meningioma, and thus, we proceeded with surgery for histologic diagnosis. Intraoperative findings revealed a whitish-gray, rubbery tumor adhering to the dura and arachnoid membrane, which was removed, and intraoperative frozen biopsy reported lymphoma. Finally, the patient was diagnosed with diffuse large B-cell lymphoma. This case report highlights the impor-tance of considering lesions that may be responsive to steroids and the imaging characteristics of lymphoma, which can be distinguished from other lesions.

INTRODUCTION

CASE REPORT

DISCUSSION

CONFLICT OF INTEREST

ORCID

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