Three Cases of External Auditory Exostoses in a Habitual Sauna User

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Other Title
  • サウナ習慣者に発症した高温,冷水反復刺激が誘因と思われる外耳道外骨腫の3症例
  • 症例報告 サウナ習慣者に発症した高温,冷水反復刺激が誘因と思われる外耳道外骨腫の3症例
  • ショウレイ ホウコク サウナ シュウカンシャ ニ ハッショウ シタ コウオン,ヒヤミズ ハンプク シゲキ ガ ユウイン ト オモワレル ガイジドウ ガイコツ シュ ノ 3 ショウレイ

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Description

Exostoses are benign bony excrescences of the external auditory canal, commonly encountered in people who avidly engage in aquatic activities, hence the name “surfer's ear”. Exostoses are more prevalent in cold water surfers, and additional years of surfing increase one's risk not only for developing an exostosis but also for developing more severe lesions. Exostoses remain clinically silent until they become large enough to impair the egress of epithelial debris and water from the canal, in which case there may be an associated external otitis and fluctuating hearing loss. Histologically, they demonstrate a laminated structure consistent with a periodic growth pattern. They may also cause a hearing loss by impinging upon the tympanic membrane and manubrium. Symptomatic relief is attained by surgical removal and skin grafting of the epithelially denuded areas of the bony walls of the external auditory canal.<br>We report herein on 3 cases of exostoses which developed in patients who had a habit of taking a cold water bath after a hot sauna for more than 15 years: in spite of the limited time of exposure to cold water stimulation, alternating exposure to the hot environment of the sauna and cold water baths seemed to have acceralated the formation of the exostoses.

Journal

  • Nippon Jibiinkoka Gakkai Kaiho

    Nippon Jibiinkoka Gakkai Kaiho 116 (11), 1214-1219, 2013

    Japanese Society of Otorhinolaryngology-Head and neck surgery

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