Chondroblastoma of the Temporal Bone Removed Using a Middle Cranial Fossa Approach

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  • Ishioka Kaoru
    Department of Otolaryngology, Sin-yurigaoka General Hospital
  • Kanzaki Jin
    Department of Otolaryngology, Atami Hospital, International University of Health and Welfare
  • Harada Tatsuhiko
    Department of Otolaryngology, Atami Hospital, International University of Health and Welfare
  • Takanashi Yoshihiro
    Department of Neurosurgery, Atami Hospital, International University of Health and Welfare
  • Shinonaga Masamichi
    Department of Neurosurgery, Atami Hospital, International University of Health and Welfare
  • Kitamura Hajime
    Department of Pathology, Ito-shimin Hospital

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Other Title
  • 中頭蓋窩法で摘除した側頭骨に発生した軟骨芽細胞腫
  • 症例報告 中頭蓋窩法で摘除した側頭骨に発生した軟骨芽細胞腫
  • ショウレイ ホウコク チュウ ズガイカホウ デ テキジョシタ ソクトウコツ ニ ハッセイ シタ ナン コツガ サイボウ シュ

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Abstract

We report a case of chondroblastoma of the middle cranial fossa, probably arising from the (infra)mandibular fossa, and expanding to the attic and external auditory canal that was successfully removed using a middle cranial fossa approach. No recurrences occurred during an 8-year postoperative follow-up period. Initial biopsy findings suggested a pathological diagnosis of giant cell tumor that was later confirmed to be a chondroblastoma based on an immunohistochemical study of S-100. This case study suggests a profound understanding of the clinical features, histopathological characteristics, and possible treatment of chondroblastoma.

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