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MRI Evaluation of Unusual Presentations of Intracranial Meningioma: A Case Series |
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Beenamary Abelraj, Joseph Manuel, Prithigaa Ravichandar, Sam Edwin Blake, Aarthi Rameshbabu 1. Postgraduate Student, Department of Radiodiagnosis, Pondicherry Institute of Medical Sciences, Puducherry, India. 2. Assistant Professor, Department of Radiodiagnosis, Pondicherry Institute of Medical Sciences, Puducherry, India. 3. Assistant Professor, Department of Radiodiagnosis, Pondicherry Institute of Medical Sciences, Puducherry, India. 4. Postgraduate, Department of Radiodiagnosis, Pondicherry Institute of Medical Sciences, Puducherry, India. 5. Postgraduate, Department of Radiodiagnosis, Pondicherry Institute of Medical Sciences, Puducherry, India. |
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Correspondence Address : Dr. Beenamary Abelraj, No. 14, Sowbarnika Garden, Ariyankuppam-605007, Puducherry, India. E-mail: beenar33@gmail.com |
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| ABSTRACT |  | ||||||
: Intracranial meningiomas, though typically slow-growing and benign, can present significant diagnostic challenges when located in atypical anatomical sites or associated with unusual clinical manifestations. This case series highlights five patients with meningiomas arising in uncommon regions, including the olfactory groove, intraventricular space, sinonasal cavity, and anterior and posterior cranial fossae. Clinical presentations ranged from anosmia and visual disturbances to cranial nerve deficits and features of raised intracranial pressure. Advanced imaging, particularly MR spectroscopy, was instrumental in diagnosis, demonstrating characteristic choline and alanine peaks that differentiated meningiomas from other neoplasms. Some lesions displayed heterogeneous enhancement, irregular margins, and bone erosion, mimicking aggressive or non-meningothelial tumours. Recognition of these atypical radiological and clinical variants is crucial for accurate diagnosis, optimal surgical planning, and improved patient outcomes. | |||||||
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| Keywords : Atypical presentation, Cerebello-pontine angle, Magnetic resonance imaging spectroscopy, Olfactory groove, Paranasal sinuses | |||||||
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DOI and Others :
DOI: 10.7860/IJARS/2026/82996.3080
Date of Submission: Aug 31, 2025 Date of Peer Review: Oct 18, 2025 Date of Acceptance: Dec 10, 2025 Date of Publishing: Jan 01, 2026 AUTHOR DECLARATION: • Financial or Other Competing Interests: None • Was informed consent obtained from the subjects involved in the study? Yes • For any images presented appropriate consent has been obtained from the subjects. Yes PLAGIARISM CHECKING METHODS: • Plagiarism X-checker: Sep 09, 2025 • Manual Googling: Dec 02, 2025 • iThenticate Software: Dec 09, 2025 (3%) ETYMOLOGY: Author Origin EMENDATIONS: 6 |
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