顎下部に発生した粘液腫の1例

• Published in: 日本口腔外科学会雑誌 Vol. 60; no. 5; pp. 252 - 256
• Main Authors: 林, 央子, 山本, 泰, 齋藤, 隆明, 小林, 淳二
• Format: Journal Article
• Language: Japanese
• Published: 社団法人 日本口腔外科学会 20.05.2014
• Subjects: magnetic resonance imaging; 粘液腫; 軟部組織; 頭頸部
• ISSN: 0021-5163; 2186-1579
• DOI: 10.5794/jjoms.60.252

Myxomas are rare benign mesenchymal tumors that occur in the head and neck region. It is difficult to preoperatively diagnose myxomas on the basis of clinical features because of the lack of characteristic radiographic features. We present the case of a 62-year-old man who had a soft tissue myxoma with a painless palpable mass in the left submandibular triangle. The mass showed low signal intensity on T1-weighted images and high signal intensity on T2-weighted images on magnetic resonance imaging. The mass was removed with part of the muscle adhering to it under general anesthesia. Histopathologically, the mass was diagnosed as a myxoma. No recurrence has occurred as of 7 years after excision.