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Two cases of osseous choristoma occurring at the base of the tongue Satoru Koike 1 , Shusuke Iwamoto 1 , Takayuki Kimura 1 , Masashi Yamamoto 1 , Mitsuo Sato 1 , Mutsuzo Kitano 1 , Naoki Otsuki 1 , Ryuji Yasumatsu 1 1Department of Otolaryngology-Head and Neck Surgery, Kindai University Hospital, Faculty of Medicine Keyword: oropharynx , ectopic bone formation pp.1169-1174
Published Date 2022/12/20
DOI https://doi.org/10.11477/mf.1411203212
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 Osseous choristoma is a rare benign lesion characterized by ectopic bone formation in the soft tissue of the head and neck region. We report two cases of osseous choristoma occurring at the base of the tongue.

 Case 1 is a 25-year-old female who experienced discomfort in the throat and accidentally found the lesion herself. A hard mass approximately 10 mm in diameter was present at the base of the tongue.

 Case 2 is a 38-year-old male who experienced throat discomfort and accidentally detected the lesion himself.

 The masses were excised under general anesthesia in both cases and were diagnosed histopathologically as osseous choristoma. Our literature review presented 39 cases of osseous choristoma, including our presenting case reports in Japan and abroad since 2001.


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電子版ISSN 1882-1316 印刷版ISSN 0914-3491 医学書院

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