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KMID : 0858520110150020170
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Journal of the Korean Society of Magnetic Resonance in Medicine
2011 Volume.15 No. 2 p.170 ~ p.175
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Ancient Schwannoma of the Thigh mimicking a Plexiform Malignant Peripheral Nerve Sheath Tumor: A Case Report
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Lee Yeon-Soo
Park Sang-Eun
Lee Jung-Uee
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Abstract
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Ancient schwannoma is a rare variant of schwannoma and a slow growing benign tumor associated with degeneration that may be diagnosed as a malignant tumor, because it presents with a large size and an inhomogeneous signal intensity. The main differential diagnosis of plexiform soft tissue tumor includes plexiform neurofibroma, malignant peripheral nerve sheath tumor (MPNST). In this case, we describe the MRI findings in a case of ancient schwannoma involving left thigh of a 63-year-old woman mimicking a plexiform MPNST. The tumor appeared as an inhomogeneous signal intensity and multinodular appearance, causing misdiagnosis as a plexiform MPNST.
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KEYWORD
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Schwannoma, Plexiform, Thigh, Magnetic resonance (MR)
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