A case of pseudogout in the inferior joint space of the temporomandibular joint

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  • YAMAMOTO Noriaki
    Division of Oral and Maxillofacial Reconstruction Surgery, Department of Oral and Maxillofacial Surgery
  • MIYAMOTO Ikuya
    Division of Oral and Maxillofacial Reconstruction Surgery, Department of Oral and Maxillofacial Surgery
  • ISHIKAWA Ayataka
    Division of Oral Pathology, Department of Bioscience, Science of Health Improvement
  • YAMASHITA Yoshihiro
    Division of Oral and Maxillofacial Reconstruction Surgery, Department of Oral and Maxillofacial Surgery
  • YAMAUCHI Kensuke
    Division of Oral and Maxillofacial Reconstruction Surgery, Department of Oral and Maxillofacial Surgery
  • TAKAHASHI Tetsu
    Division of Oral and Maxillofacial Reconstruction Surgery, Department of Oral and Maxillofacial Surgery

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Other Title
  • 顎関節下関節腔に生じた偽痛風の1例
  • ガク カンセツ シモノセキセツコウ ニ ショウジタ ニセ ツウフウ ノ 1レイ

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Description

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.

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