CHORUS
Collaborative Hypertext of Radiology
Nervous system
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glomus jugulare
- most common tumor in jugular fossa with intracranial extension
- origin: adventitia of jugular bulb
- location: dome of jugular bulb
- symptoms: tinnitus, hearing loss
- findings:
- destruction of posterioinferior petrous pyramid + corticojugular spine
- soft tissue mass in jugular bulb region, hypotympanicum,
middle ear
- destruction of ossicles (usually incus), otic capsule, posteromedial
surface of petrous bone
- MRI: "salt and pepper" appearance (multiple tumor vessels)
- angio: hypervascular mass; invasion/obstruction of the jugular
bulb by thrombus/tumor; AV shunting
- malignant transformation with mets to regional nodes (2-4%)
see: paraganglioma (glomus tumor)
Yong H. Hahn, MD - 2 February 1995
Last updated: 1 October 2013
Copyright © 2013, Charles E. Kahn, Jr.
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