Trilobed meningioma: ampulla of posterior semicircular canal, internal auditory canal, and cerebellopontine angle

Meningiomas rarely arise from or remain limited to the temporal bone. When the diagnosis of temporal bone meningioma is made, it is mandatory to investigate the possibility of an intracranial component. Computerized axial tomography with contrast enhancement is of limited value in detecting small tu...

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Bibliographic Details
Published in:	The American journal of otology (New York, N.Y.) Vol. 1; no. 3; pp. 171 - 173
Main Authors:	Brookler, K H, Hoffman, R A, Camins, M, Terzakis, J
Format:	Journal Article
Language:	English
Published:	United States 01-01-1980
Subjects:	Aged Cerebellopontine Angle Female Humans Labyrinth Diseases - diagnosis Meningeal Neoplasms - diagnosis Meningeal Neoplasms - diagnostic imaging Meningioma - diagnosis Meningioma - diagnostic imaging Myelography Neoplasm Invasiveness Semicircular Canals Temporal Bone Tomography, X-Ray Computed
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Summary:	Meningiomas rarely arise from or remain limited to the temporal bone. When the diagnosis of temporal bone meningioma is made, it is mandatory to investigate the possibility of an intracranial component. Computerized axial tomography with contrast enhancement is of limited value in detecting small tumors adjacent to the temporal bone or within the internal auditory canal. If the computerized tomogram is normal, a positive contrast posterior fossa myelogram is indicated. The pitfall of depending solely upon computerized tomography to detect intracranial extension became clear in the evaluation of a patient found to have an unusual trilobed meningioma.
Bibliography:	ObjectType-Case Study-2 SourceType-Scholarly Journals-1 ObjectType-Feature-4 content type line 23 ObjectType-Report-1 ObjectType-Article-3
ISSN:	0192-9763