Primary meningiomas of the jugular fossa

Abstract

With a careful, extensive preoperative evaluation and appropriate tailoring of the operative approach, JFMs can be radically resected with the expectation of good outcome.

Jugular Foramen Meningiomas: Review of the Major Surgical Series

“…14) Selective angiography can barely detect minimal vascularity in meningiomas, despite the characteristic hypervascularity of paragangliomas, but if the tumor is hypervascular, embolization may be helpful to prevent from operative blood loss. 1,9) Meningiomas often and schwannomas very rarely show calcification, whereas paragangliomas usually do not. CT shows meningiomas as slightly hyperdense with matrix calcification, and the jugular foramen margins appear with permeative/sclerotic appearance.…”

“…1,9,14-16) Paragangliomas, schwannomas, epidermoid tumors, chordomas, choroid plexus papillomas, chondromas, temporal bone carcinomas, salivary gland tumors, aneurysms, metastases, cerebellar hemangioblastomas, and ependymomas may be confused with jugular foramen meningiomas, even on MR images. 1) Preoperative evaluation of the venous flow of the sigmoid sinuses, jugular bulbs, and jugular veins may prevent postoperative complications such as benign intracranial hypertension and cerebral hemorrhagic infarcts. This procedure also gives some important data for the planning of the surgical approach.…”

“…Glomus tumors usually erode and destroy the bone, particularly the jugular spine and tubercule. 1,6,11,14) V. Tumor staging Jugular foramen meningiomas may compress and invade the LCNs, invade the temporal bone and jugular bulb, or extend into the CPA and middle ear fossa or extracranially into the neck. Jugular foramen meningiomas which extend to the middle ear fossa may cause conductive type hearing loss, which requires otolaryngological treatment.…”

“…Primary jugular foramen meningiomas are extremely rare, accounting for approximately 0.7-4% of all posterior fossa meningiomas, and 9-10% of all intracranial meningiomas. 1,12,14) The number of case reports has been increasing. This review evaluated the cases of 96 patients previously described to assess the clinical characteristics of jugular foramen meningiomas, and to propose a staging system for these meningiomas.…”

A rare case of jugular foramen meningioma

“…Schwannomas appear iso-to mildly hyperdense on CT and may cause enlargement of jugular foramen without any bone destruction. 7 Bakar classified JFM into the following types: Type Iprimarily within jugular foramen, Type II -primarily extension to the CP angle, Type IIa -extension to the CP angle and middle ear, Type III -primarily extension to neck, Type IIIa -primarily extension to neck and middle ear, Type IV -extension to CP angle and neck, and Type IVa -extension to CP angle, neck, and middle ear. 3 JFM in our patient fitted into Type III.…”