内側および外側翼突筋内に迷入した魚骨異物の1例

• Published in: 日本口腔外科学会雑誌 Vol. 63; no. 2; pp. 74 - 78
• Main Authors: 後藤, 新吾, 寺嶋, 純一, 石河, 嘉矩, 石川, 紅生, 今井, 隆生
• Format: Journal Article
• Language: Japanese
• Published: 社団法人 日本口腔外科学会 20.02.2017
• Subjects: 内側翼突筋; 咽頭腔外異物; 外側翼突筋; 魚骨
• ISSN: 0021-5163; 2186-1579
• DOI: 10.5794/jjoms.63.74

Extrapharyngeal foreign bodies buried under the mucosa are considered uncommon, and early extraction is desirable. We report our experience with the case of a migrated fish bone between the medial and lateral pterygoid muscles.　The patient was a 65 year-old man who had severe pain after eating monkfish. Intraoral examination revealed redness and swelling of the soft palate at the posterior of the right maxillary tuberosity. Computed tomographic (CT) examination showed punctiform nonradiolucent findings on axial sections and linear nonradiolucent findings on saggital sections between the medial and lateral pterygoid muscles. The fish bone was extracted with the patient under general anesthesia. We were able to identify the fish bone relatively easily on three-dimensional CT images.　Because an extrapharyngeal foreign body can cause lethal conditions due to secondary infection, it was necessary for us to enucleate it immediately. However, an intraoperative unprepared search can cause harmful phenomena such as vascular damage. Therefore, determining the location by CT was useful for the early and safe extraction of the foreign object.