Metaplastic meningioma with pure and extensive cartilaginous transformation: A diagnostic dilemma

Oumar Coulibaly, Justin Onen, Amal Harmouch, Majhouba Boutarbouch, Adil Melhaoui, Yasser Arkha, Loubna Rifi, Said Derraz, Sanaa Sefiani, Abdessamad El Ouahabi, Abdeslam El Khamlichi

Department of Neurosurgery, H?pital des Spécialités, CHU Ibn Sina, Rabat-Salé, Morocco.
Department of Neurosurgery, H?pital des Spécialités, CHU Ibn Sina, Rabat-Salé, Morocco;.
Department of Pathology, H?pital des Spécialités, CHU Ibn Sina, Rabat-Salé, Morocco.

DOI: 10.4236/crcm.2013.27104                

Abstract

Meningiomas are the most common extra-axial central nervous system tumours and often discovered in the middle to late adult life and especially in women. About 85%-90% of meningiomas are benign, 5%-10% are intermediate-grade, and 3%-5% are malignant. Metaplastic meningioma is a rare subtype of WHO Grade I meningioma histologically characterized by the presence of mesenchymal components. The presence of pure and extensive cartilaginous differentiation in meningiomas is extremely rare and remains a diagnostic dilemma. We report, perhaps the first case of this entity in a 52-year-old woman and discuss the pathogenesis, the imaging features and the histopathologicals data.

Keywords

Meningioma; Metaplastic Meningioma;Pure Cartilaginous Differentiation;Diagnostic Dilemma

Conflicts of Interest

The authors declare no conflicts of interest.

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