著者

谷口 紀江 泉 雅浩 香西 雄介 櫻井 孝

出版者

特定非営利活動法人 日本歯科放射線学会

雑誌

歯科放射線 (ISSN:03899705)

巻号頁・発行日

vol.62, no.2, pp.94-98, 2023 (Released:2023-04-06)

参考文献数

23

---

The prevalence of oral cancer in Japan is higher in men aged 60 and over, and it is reported that the number is increasing. In recent years, it has been reported that its incidence in women and young people under the age of 40 is also increasing. Young patients generally have a good general condition and are often eligible for radical surgery, which has been reported to have a good prognosis. Early detection and therapeutic intervention are important because oral cancer progresses quickly. The present case was a 17-year-old girl. In April 2018, she visited our hospital with a chief complaint of stomatitis at the base of her tongue. An induration mass with a diameter of 30mm was found on the left tongue edge. She was diagnosed with left tongue cancer (T3N0M0 Stage 3). We performed tongue resection under general anesthesia and abdominal skin graft. Two months after the operation, we found metastatic findings (interval enlargement and internal echo of the left upper internal cervical lymph node) on US examination. On follow-up, there was no change in lymph node size and internal appearance for two months; however, after two months, the lymph nodes were large and swollen, and CT showed typical findings of metastases. We performed left neck dissection. The imaging findings of the present case may be useful for accurate imaging diagnosis in the future.

著者

野田 佳江 中筋 幾子 清水 幹雄 栗田 賢一 宮澤 健 後藤 滋巳 泉 雅浩

出版者

一般社団法人 日本顎関節学会

雑誌

日本顎関節学会雑誌 (ISSN:09153004)

巻号頁・発行日

vol.21, no.1, pp.1-4, 2009 (Released:2012-02-15)

参考文献数

6

---

両側の下顎頭吸収が起き,これに継発して前歯部が開咬を呈する症例に対し,Indirect Bonded Splint(IBS)を用いた顎間牽引を行い,良好な結果を得られた。 患者は42歳の女性で,1年前より右側顎関節部の軽度の疼痛と前歯部の開咬を自覚していた。開咬は除々に増悪し,来院時にはoverjet+1.0mm,overbite-3.5mmとなっていた。開口域は46mmであった。CTでは両側下顎頭の平坦化がみられ,左側下顎頭海綿骨の緻密化および関節結節部にはエロージョンを認めた。そこで,IBSを歯列に装着し,ゴムにて顎間牽引を行った。顎間牽引終了8か月後,前歯部開咬は改善し,CTでは左右下顎頭および左側関節結節の皮質骨の再生が確認できた。 IBSを用いた顎間牽引は開咬を伴う変形性顎関節症に対する保存的療法の有用な一手段である。

著者

森田 光子 有地 淑子 木瀬 祥貴 後藤 真一 泉 雅浩 内藤 宗孝 勝又 明敏 有地 榮一郎

出版者

特定非営利活動法人 日本歯科放射線学会

雑誌

歯科放射線 (ISSN:03899705)

巻号頁・発行日

vol.50, no.3, pp.27-38, 2010 (Released:2011-03-11)

参考文献数

20

---

Objective: To clarify the educational effect of a lecture on differential imaging features comparing ameloblastomas and keratocystic odontogenic tumors of the mandibles presented to dental students.Methods: Panoramic and CT images of 10 ameloblastomas and 10 keratocystic odontogenic tumors were randomly presented 114 dental students. Test scores, correct answer ratios, identification index, and understanding of the imaging features contributing to a correct diagnosis were serially evaluated before and after the lecture on the differential imaging features comparing the two types of tumors.Results: The mean and standard deviation of the scoring ratios of dental students diagnosing these lesions on panoramic and CT images were 48.8 ± 10.8% and 52.5 ± 12.9%, respectively. After the lecture on the differential imaging features comparing the two tumors, the scoring ratios improved significantly. After the lecture, both the numbers of patients whose images were correctly diagnosed and the identification indices increased. The lecture also increased the number of imaging features recognized as contributing to the correct diagnosis.Conclusion: A lecture on the differential imaging features comparing ameloblastomas and keratocystic odontogenic tumors of the mandibles contributed to the improvement of imaging diagnosis skills among dental students.