A case of complex odontoma in the posterior wall of the maxillary sinus

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  • SAKAGUCHI Atsuko
    Department of Dentistry and Oral Surgery, School of Medicine, Keio University
  • YAGO Kaori
    Department of Dentistry and Oral Surgery, School of Medicine, Keio University
  • MIYASHITA Hidetaka
    Department of Dentistry and Oral Surgery, School of Medicine, Keio University
  • IKEUCHI Shinobu
    Department of Oral and Maxillofacial Surgery, Shizuoka Shimizu Municipal Hospital
  • TANAKA Yoichi
    Division of Surgical Pathology, Clinical Laboratory, Ichikawa General Hospital, Tokyo Dental College
  • NAKAGAWA Taneaki
    Department of Dentistry and Oral Surgery, School of Medicine, Keio University

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Other Title
  • 上顎洞後壁にみられた複雑性歯牙腫の１例
  • ジョウガクドウ コウヘキ ニ ミラレタ フクザツセイ シガシュ ノ 1レイ

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Abstract

Odontoma is the most common odontogenic tumor. However, it rarely occurs in the maxillary sinus.<BR>We report an extremely rare case of complex odontoma arising in the posterior wall of the maxillary sinus.<BR>A 39-year-old man came to our department because of swelling in the left maxillary anterior region. A dental Xray film showed a round radiolucent lesion in the upper incisal alveolar bone. Panoramic radiography accidentally revealed a round radiopaque mass in the left maxillary sinus. A computed tomographic scan showed a high density mass in the posterior wall of the maxillary sinus. Both lesions were enucleated with the patient under general anesthesia. The resected lesion from the maxillary sinus measured 26×23×21mm and was white and bony hard. The definitive histopathological diagnosis was a complex odontoma.<BR>About 1 year after the operation, the patient showed no signs of recurrence.

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