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MedPix® Medical Image DatabaseDisease Topic 4165
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Contributor: Scott C. Wright - Madigan Army Medical Center
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More Like This ? Vestibular Schwannoma
Factoid 4165 - Created: 2002-09-16 16:28:29-04 - Modified: 2004-03-21 04:17:19-05
ACR Codes: 1.3
Cerebellopontine angle masses:
Most commonly are schwannomas (75%), from the vestibular portion of the vestibulo-chochlear nerve. Less likely to arise from CN 7.
DDx: “SAME”
S- schwannoma
A- Aneurysm, arachnoid cyst
M- Menigioma, Mets
E- Epidermoid, ependymoma.

This case has the classic ice-cream cone appearance of a schwannoma with the apex directed into the IAC. The other diagnoses are eliminated by the location and imaging characteristics.
Reference(s):
Smirniopoulos JG. "Patterns of Location", in: AFIP notes, Apr 2002.
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Location:
Brain and Neuro 		Sublocation:
Cerebellopontine Cistern		Category:
Neoplasm, non-glial
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Prepared by: Scott C. Wright
Affiliation: Madigan Army Medical Center - || - Author Profile
Approved by: James G. Smirniotopoulos, M.D.
Affiliation: Uniformed Services University - || - Editor Profile
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