A case of extraskeletal Ewing's sarcoma in the nasal cavity

DOI
  • MAEDA Hiroyuki
    Department of Otorhinolaryngology, University of the Ryukyus, Faculty of Medicine
  • KOJYA Shizuo
    Department of Otorhinolaryngology, University of the Ryukyus, Faculty of Medicine
  • ITOKAZU Tetsuo
    Department of Otorhinolaryngology, University of the Ryukyus, Faculty of Medicine
  • NAKAMURA Yukio
    Department of Otorhinolaryngology, University of the Ryukyus, Faculty of Medicine
  • OWA Tatsuhito
    Department of Otorhinolaryngology, University of the Ryukyus, Faculty of Medicine
  • NODA Yutaka
    Department of Otorhinolaryngology, University of the Ryukyus, Faculty of Medicine

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Other Title
  • 骨外性と考えられた鼻腔Ewing's sarcomaの1例

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Ewing's sarcomas are considered to be malignant bone tumors which usually arise in the medullary tissue of the long bone or pelvis. In the head and neck region, primary Ewing's sarcoma is very rare. In this report, a rare case of primary Ewing's sarcoma, which arose in the soft tissue of the right nasal cavity and then invaded the cranial base is presented. The patient was treated by chemotherapy followed by radiotherapy. The tumor in the nasal cavity was obscured after radiation, however, the tumor recurred in the madullary tissue of the bone, which thus led to DIC. The chemo-radio therapy reginen proved to be effective but not sufficient.

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