顎関節下関節腔に生じた偽痛風の1例

• Published in: 日本口腔外科学会雑誌 Vol. 57; no. 11; pp. 601 - 605
• Main Authors: 山内, 健介, 高橋, 哲, 石川, 文隆, 山下, 善弘, 宮本, 郁也, 山本, 哲彰
• Format: Journal Article
• Language: Japanese
• Published: 社団法人 日本口腔外科学会 20.11.2011
• Subjects: ピロリン酸カルシウム結晶; 偽痛風; 顎関節
• ISSN: 0021-5163; 2186-1579
• DOI: 10.5794/jjoms.57.601

Pseudogout is a disease caused by calcium pyrophosphate dehydrate （CPPD） deposition in a joint and occurs most often in the knee joint. Eighteen reports of pseudogout arising from in the temporomandibular joint （TMJ） have been published in the Japanese literature. We report a rare case of pseudogout in the inferior joint space of the TMJ of a 59-year-old man. He was referred to our department because of pain and trismus in the right TMJ. A computed tomographic scan and a magnetic resonance image of the area showed a calcified mass anterior to the right condylar head. Extirpation of the calcified mass was performed under general anesthesia, and a white, chalky mass was removed. Scanning electron microscopy and X-ray diffraction showed CPPD in the calcified mass. No signs or symptoms of recurrence have occurred after a 1-year follow-up.