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KMID : 1039420170510050505
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Journal of Pathology and Translational Medicine
2017 Volume.51 No. 5 p.505 ~ p.508
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A Rare Case of Aggressive Melanotic Schwannoma Occurred in Spinal Nerve of a 59-Year-Old Male
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Choi Sung-Eun
Cha Yoon-Jin
Kim Ji-Sup
Cha Hyun-Seo
Seo Ja-Yeong
Kuh Sung-Uk
Kim Sung-Jun
Kim Se-Hoon
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Abstract
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Melanotic schwannoma (MS) is a rare variant of nerve sheath neoplasm that shows ultrastructural and immunophenotypical features of Schwann cells but also has cytoplasmic melanosomes and is reactive for melanocytic markers as well. Unlike conventional schwannoma, which is totally benign, MS has an unpredictable prognosis and is thought to have low-malignant potential. Herein, we present a rare case of recurrent MS in lumbar spine of a 59-year-old male.
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KEYWORD
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Melanotic schwannoma, Spine, Recurrence, Metastasis
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