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KMID : 1039420230570050278
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Journal of Pathology and Translational Medicine
2023 Volume.57 No. 5 p.278 ~ p.283
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Diagnostic conundrums of schwannomas: two cases highlighting morphological extremes and diagnostic challenges in biopsy specimens of soft tissue tumors
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Kim Chan-Kyung
Chung Yang-Guk
Jung Chan-Kwon
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Abstract
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Schwannomas are benign, slow-growing peripheral nerve sheath tumors commonly occurring in the head, neck, and flexor regions of the extremities. Although most schwannomas are easily diagnosable, their variable morphology can occasionally create difficulty in diagnosis. Reporting pathologists should be aware that schwannomas can exhibit a broad spectrum of morphological patterns. Clinical and radiological examinations can show correlation and should be performed, in conjunction with ancillary tests, when appropriate. Furthermore, deferring a definitive diagnosis until excision may be necessary for small biopsy specimens and frozen sections. This report underscores these challenges through examination of two unique schwannoma cases, one predominantly cellular and the other myxoid, both of which posed significant challenges in histological interpretation.
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KEYWORD
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Neurilemmoma, Soft tissue neoplasms, Biopsy, Frozen sections, Immunohistochemistry, Pathologists, Extremities, Mitosis
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