日本口腔診断学会雑誌
Online ISSN : 2188-2843
Print ISSN : 0914-9694
臨床報告
上顎に発生した囊胞性変化を伴う石灰化上皮性歯原性腫瘍の1例
水書 智子笠原 英生岡田 奈穂子石井 宏昭
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ジャーナル 認証あり

2018 年 31 巻 1 号 p. 35-40

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Calcifying epithelial odontogenic tumor (CEOT) is a rare benign tumor that accounts for only 1% of odontogenic tumors. According to the 2017 World Health Organization Classification of Odontogenic Tumours, cystic variants of CEOT have been occasionally reported. We report a case of a cystic variant of CEOT in the left maxilla. A male in his 20s was referred to our hospital with swelling of the left maxilla. Computed tomography revealed a tumor lesion in the left maxilla with impacted canine and multiple radiopaque bodies. The tumor lesion showed low signal intensity on T1-weighted images and high intensity on T2-weighted images, and the canine equivalent part showed low signal intensity on T1 and T2-weighted images under magnetic resonance imaging. Based on a pathological diagnosis of a surgical specimen as CEOT, the tumor was enucleated, and the impacted canine was extracted under general anesthesia. The postoperative course was uneventful and there have been no signs of recurrence for 3 years after surgery.

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