鼓室内に限局した側頭骨線維性骨異形成症の1例

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  • Fibrous dysplasia limited to the tympanic cavity

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Fibrous dysplasia is a benign disease characterized by the progressive replacement of normal bone elements with fibrous tissue, and tympanic cavity involvement is uncommon. A 13-year-old female visited our hospital complaining of progressive left hearing loss over 7 years. Computed tomography showed a tumor shadow from the tegmental wall along the short leg of the incus to the middle tympanic cavity. Magnetic resonance imaging revealed low signal intensities on both T1- and T2-weighted images enhanced by gadolinium. The histological examination gave a diagnosis of fibrous dysplasia. The treatment is mainly conservative, although surgery may be required in the future to preserve hearing function and prevent facial nerve complications.

収録刊行物

  • 頭頸部外科

    頭頸部外科 21 (2), 131-134, 2011

    特定非営利活動法人 日本頭頸部外科学会

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