A case of Yolk sac tumor arising from paranasal sinus

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  • Shinomura Kaori
    Department of Otolaryngology and Head and Neck Surgery, Oita University Hospital Department of Otolaryngology, Oita Prefectural Hospital
  • Moriyama Munehito
    Department of Otolaryngology and Head and Neck Surgery, Oita University Hospital
  • Fujita Keigo
    Department of Otolaryngology, Oita Prefectural Hospital
  • Hirano Takashi
    Department of Otolaryngology and Head and Neck Surgery, Oita University Hospital
  • Suzuki Masashi
    Department of Otolaryngology and Head and Neck Surgery, Oita University Hospital

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  • 鼻副鼻腔に発生したYolk sac tumorの1例

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Abstract

Yolk sac tumor （YST） originating in the head and neck region is a rare tumor. We report a case of YST arising in the paranasal sinus. <br>An 82-year-old man presented with left nasal congestion and bloody rhinorrhea. Endoscopic examination revealed a big tumor filling the left nasal cavity, and computed tomography revealed a 5-cm mass in the left ethmoid sinus and nasal cavity. Two consecutive biopsies could not confirm any histopathological diagnosis. Therefore, a bigger sample was taken under general anesthesia. The immunohistochemical features indicated YST. The patient was placed on radiation therapy and showed a good response. However, the tumor grew rapidly and 16 months later he died of the YST. <br>Herein, we discuss the histological features and treatment of this tumor, with reference to other cases of YST in the nasal cavity.

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