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Different subtypes meningiomas arising in the same region. M. Neroni, R. Gazzeri, G. Ricci e S. Esposito U.O.D. Neurosurgery, San Giovanni – Addolorata Hospital Rome. Introduction Occurrence of multiple primary brain tumors is uncommon
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Different subtypes meningiomas arising in the same region M. Neroni, R. Gazzeri, G. Ricci e S. Esposito U.O.D. Neurosurgery, San Giovanni – Addolorata Hospital Rome
Introduction Occurrence of multiple primary brain tumors is uncommon - Chordoid meningioma is a rare isthological entity The association of two different subtypes meningiomas in the same region have not yet been reported
Case Report A 64 y.o. cauc. woman presenting with headaches since 5 months - Referred to our E.R. after acute onset of seizure No neurological deficit were disclosed
Case Report Emergency CT showed a huge pterional hyperdense lesion MR revealed two distinct lesions showing a different contrast enhancement
Widened Pterional approach Removing the anterior firm and larger tumor (intra-op histo exam revealed a chordoma) WHO II Bone and muscle were infiltrated (Simpson I) Cleavage between the lesions Posterior mass was easily removed (intra-op histo exam revealed a transitional meningioma) WHO I
Histology Anterior tumor: Chordoid Meningioma (Grade II WHO) - Posterior mass: Transitional Meningioma (Grade I WHO)
Conclusion At nine months F.U. patient is still free disease No radiotherapy was delivered - Control MR showed no recurrence