Meningeoma intraoseo primario. Reporte de caso y revisión de literatura

Abstract

Meningiomas that develop in ectopic locations represent only 1 to 2% of the total number of Meningiomas. The term Primary Extradural Meningioma (PEM) signifies that the origin of these tumors is isolated from the dural covering of any part of the brain and spinal cord. Primary Intraosseous Meningioma (PIM) describes a PEM subtype that originates in the bone and accounts for approximately two-thirds of all the Extradural Meningiomas. The clinical appearance of lesions and differential diagnoses depend primarily on the lesion’s location, size and neighboring structures. The radiological appearance of Intraosseous Meningiomas depends to a large extent on their location and on the effects they cause upon invading the bone. Tumors are typically osteoblastic or osteolytic. Intraosseous Meningiomas are Histologically and Immunophenotypically indistinguishable from their Intracranial Meningiomas counterparts. When surgical excision is the treatment of choice, the patient’s potential cure is possible.