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Titolo:
Unusual lesions of the cerebellopontine angle: A segmental approach
Autore:
Bonneville, F; Sarrazin, JL; Marsot-Dupuch, K; Iffenecker, C; Cordoliani, YS; Doyon, D; Bonneville, JF;
Indirizzi:
Hop Jean Minjoz, Dept Neuroradiol, F-25000 Besancon, France Hop Jean Minjoz Besancon France F-25000 radiol, F-25000 Besancon, France Hop Instruct Armees Val de Grace, Dept Radiol, Paris, France Hop Instruct Armees Val de Grace Paris France ept Radiol, Paris, France Hop St Antoine, Dept Radiol, F-75571 Paris, France Hop St Antoine Paris France F-75571 , Dept Radiol, F-75571 Paris, France Hop Bicetre, Dept Neuroradiol, Le Kremlin Bicetre, France Hop Bicetre Le Kremlin Bicetre France adiol, Le Kremlin Bicetre, France
Titolo Testata:
RADIOGRAPHICS
fascicolo: 2, volume: 21, anno: 2001,
pagine: 419 - 438
SICI:
0271-5333(200103/04)21:2<419:ULOTCA>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
RADIOLOGIC-PATHOLOGICAL CORRELATION; CEREBELLAR ARTERY ANEURYSM; DYSEMBRYOPLASTIC NEUROEPITHELIAL TUMOR; CENTRAL-NERVOUS-SYSTEM; CHOLESTEROL GRANULOMA; IMAGING FEATURES; POSTERIOR-FOSSA; MENINGEAL MELANOCYTOMA; PITUITARY-ADENOMA; ENDOLYMPHATIC SAC;
Keywords:
brain neoplasms; brain neoplasms, CT; brain neoplasms, diagnosis; brain neoplasms, MR; cerebellopontine angle, neoplasms;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
68
Recensione:
Indirizzi per estratti:
Indirizzo: Bonneville, F Hop Jean Minjoz, Dept Neuroradiol, Blvd Fleming, F-25000 Besancon, France Hop Jean Minjoz Blvd Fleming Besancon France F-25000 France
Citazione:
F. Bonneville et al., "Unusual lesions of the cerebellopontine angle: A segmental approach", RADIOGRAPHI, 21(2), 2001, pp. 419-438

Abstract

Tumors of the cerebellopontine angle (CPA) are frequent; acoustic neuromasand meningiomas represent the great majority of such tumors. However, a large variety of unusual lesions can also be encountered in the CPA. The siteof origin is the main factor in making a preoperative diagnosis for an unusual lesion of the CPA. In addition, it is essential to analyze attenuationat computed tomography (CT), signal intensity at magnetic resonance (MR) imaging, enhancement, shape and margins, extent, mass effect, and adjacent bone reaction. CPA masses can primarily arise from the cerebellopontine cistern and other CPA structures (arachnoid cyst, nonacoustic schwannoma, aneurysm, melanoma, miscellaneous meningeal lesions) or from embryologic remnants (epidermoid cyst, dermoid cyst, lipoma). Tumors can also invade the CPA by extension from the petrous bone or skull base (cholesterol granuloma, paraganglioma, chondromatous tumors, chordoma, endolymphatic sac tumor, pituitary adenoma, apex petrositis). Finally, CPA lesions can be secondary to an exophytic brainstem or ventricular tumor (glioma, choroid plexus papilloma,lymphoma, hemangioblastoma, ependymoma, medulloblastoma, dysembryoplastic neuroepithelial tumor). A close association between CT and MR imaging findings is very helpful in establishing the preoperative diagnosis for unusual lesions of the CPA.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 16:26:43