下顎前歯部舌側歯肉に生じた周辺性歯原性粘液腫の1例

• Published in: 日本口腔外科学会雑誌 Vol. 67; no. 2; pp. 63 - 66
• Main Authors: 小林, 淳一, 土橋, 恵, 北村, 哲也, 宮﨑, 晃亘, 中井, 裕美, 岡本, 準也
• Format: Journal Article
• Language: Japanese
• Published: 社団法人 日本口腔外科学会 20.02.2021
• Subjects: 周辺性歯原性粘液腫; 歯原性粘液腫; 歯肉
• ISSN: 0021-5163; 2186-1579
• DOI: 10.5794/jjoms.67.63

Peripheral odontogenic myxoma of the oral cavity is extremely rare. We present a case of peripheral myxoma arising from the mandibular anterior lingual gingiva in a 55-year-old man. Intraoral examination revealed a solitary, elastic-hard mass on the lingual gingiva of the mandibular in the range of right first incisor to canine, measuring 13mm in diameter. The mucosa of the mass was partially white in color, and the shape of the mass was slightly irregular. Abnormal uptake FDG on PET/CT (SUVmax 9.9) was observed in the anterior mandible. The mass was excised with a margin of healthy gingiva. The histopathologic diagnosis was peripheral odontogenic myxoma. Follow-up for 2 years after excision has shown no evidence of recurrence.