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Original Report |
1 Department of Radiology, University of Michigan Medical Center, 1500 E Medical
Center Dr., TC 2910G, Ann Arbor, MI 48109-0326.
2 Present address: Department of Radiology, Medical College of Virginia,
Virginia Commonwealth University, PO Box 980615, Richmond, VA
23298-0615.
OBJECTIVE. We have found variability in the sonographic appearance of peripheral nerve sheath tumors. The purpose of this study was to characterize the sonographic appearances of pathologically proven peripheral nerve sheath tumors.
CONCLUSION. Peripheral nerve sheath tumors are often hypoechoic with posterior acoustic enhancement and so may simulate a ganglion cyst. The presence of intrinsic blood flow on color Doppler sonography and peripheral nerve continuity suggests the diagnosis of peripheral nerve sheath tumor. Sonography cannot reliably distinguish neurofibromas from schwannomas.
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