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DOI: 10.1055/s-0030-1268073
Tumors and Tumor-Like Lesions of Peripheral Nerves
Publikationsverlauf
Publikationsdatum:
11. November 2010 (online)
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ABSTRACT
The diagnosis of a peripheral nerve tumor can often be suggested on imaging. Direct continuity with a neural structure or location along a typical nerve distribution, shape, and intrinsic magnetic resonance (MR) signal characteristics represent the most important signs in this regard. Although several nonneoplastic nerve lesions can be specifically diagnosed by MR imaging, benign and malignant neoplasms of peripheral nerves can usually not be distinguished with confidence. This article reviews the MR imaging appearance, clinical and pathological features of schwannoma, localized neurofibroma, plexiform neurofibroma, intraneural perineurioma, fibrolipomatous hamartoma, nerve sheath ganglion, traumatic neuroma, malignant peripheral nerve sheath tumor, and secondary malignant neoplasms of peripheral nerves. Typical findings are illustrated on the basis of histologically confirmed cases.
KEYWORDS
Peripheral nerves - neurogenic tumors - MR soft tissue imaging - soft tissue neoplasms - MR nerve imaging
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Klaus WoertlerM.D.
Department of Radiology, Technische Universität München
Ismaninger Strasse 22, D-81675 Munich, Germany
eMail: woertler@roe.med.tum.de