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Two cases of biphenotypic sinonasal sarcoma Masayuki Takahashi 1 , Shoichiro Shimizu 1 , Shun Tatehara 1 , Masanori Teshima 1 , Mitsuko Yui 1 , Masato Komatsu 2 , Go Inokuchi 1 , Ken-ichi Nibu 1 1Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine Keyword: biphenotypic sinonasal sarcoma , PAX3-MAML3融合遺伝子 , 鼻副鼻腔腫瘍 pp.763-768
Published Date 2022/8/20
DOI https://doi.org/10.11477/mf.1411203117
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 Biphenotypic sinonasal sarcoma(BSNS)is a rare sarcoma arising in the nasal cavity and paranasal sinuses. As the pathological criteria had been recently established, there have been few reports describing its clinical course. We present two cases of BSNS with severe epistaxis. Immunohistochemistry including S-100 and SMA staining, and PAX3-MAML3 fusion gene detection using fluorescence in situ hybridization were useful for making a definite diagnosis. Sphenopalatine artery embolization or amputation of the anterior ethmoidal artery was needed during endoscopic tumor resection. We should evaluate the vascularity of the tumor and take proper measures to reduce the bleeding of the tumor.


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電子版ISSN 1882-1316 印刷版ISSN 0914-3491 医学書院

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