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C-2387 - Meningioma or meningioma-like mass – from the imaging signs to the diagnosis

E. Preda, I. Lupescu; Bucharest/RO Type: Educational Exhibit
Area of Interests: Management, Neuroradiology brain, Oncology
Imaging Techniques: MR, CT
Procedures: Imaging sequences, Diagnostic procedure, Localisation
Special Focuses: Pathology, Multidisciplinary cancer care, Demineralisation-Bone
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Learning objectives: To synthesize the criteria that can differentiate a meningioma (typical or less typical) from different meningioma-like mass, illustrating by several clinical cases.

Background: INTRODUCTION Meningiomas represent approximately 15% of all symptomatic and about 33% of all incidental (asymptomatic) intracranial neoplasms. These are the most common nonglial primary tumors of the central nervous system and the most common extraaxial neoplasms, accounting for between 13 and 26 [...]

Findings and procedure details: TYPICAL MENINGIOMA has characteristic imaging findings: extraaxial, well defined focal mass, broad-based dural attachment, homogeneous densities (on CT) / intensities (on MR exam), close to those of grey matter, markedly, homogenous enhancement, both on CT and MR, enhacement of the adjacent thicken[...]

Conclusion: Understanding the similarities but also the distinct imaging features in an well-known anamnestic, clinical and etiopathogenic context, often allow a differential diagnosis between meningioma and "meningioma-like" process, avoiding unnecessary surgical acts.

Personal information: Dr. Preda Emi Marinela Prof.Dr.Ioana G.Lupescu Department of Radiology and Medical Imaging  Fundeni Clinical Institute, Bucharest, Romania  "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania  Email: emimpreda@gmail.com

References: Bondy M, Ligon BL. Epidemiology and etiology of intracranial meningiomas: a review. J Neurooncol 1996;29:197–205. Longstreth Jr WT, Dennis LK, McGuire VM, Drangsholt MT, Koepsell TD. Epidemiology of intracranial meningioma. Cancer 1993;72:639–48 Toh CH et al, Differentiation between classic and atyp[...]

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