Imaging of cerebellopontine angle lesions: an update. Part 1: enhancing extra-axial lesions |
| |
Authors: | Fabrice Bonneville Julien Savatovsky Jacques Chiras |
| |
Institution: | 1.Department of Neuroradiology,Pitié-Salpêtrière Hospital,Paris,France;2.Department of Radiology,Adolphe de Rothschild Fondation,Paris,France |
| |
Abstract: | Computed tomography (CT) and magnetic resonance (MR) imaging reliably demonstrate typical features of vestibular schwannomas
or meningiomas in the vast majority of mass lesions in the cerebellopontine angle (CPA). However, a large variety of unusual
lesions can also be encountered in the CPA. Covering the entire spectrum of lesions potentially found in the CPA, these articles
explain the pertinent neuroimaging features that radiologists need to know to make clinically relevant diagnoses in these
cases, including data from diffusion and perfusion-weighted imaging or MR spectroscopy, when available. A diagnostic algorithm
based on the lesion’s site of origin, shape and margins, density, signal intensity and contrast material uptake is also proposed.
Part 1 describes the different enhancing extra-axial CPA masses primarily arising from the cerebellopontine cistern and its
contents, including vestibular and non-vestibular schwannomas, meningioma, metastasis, aneurysm, tuberculosis and other miscellaneous
meningeal lesions. |
| |
Keywords: | Cerebellopontine angle Brain tumours Magnetic resonance imaging Diffusion imaging |
本文献已被 PubMed SpringerLink 等数据库收录! |
|