A case of tophaceous pseudogout of the temporomandibular joint extending to the base of the skull. Issue 3 (March 2017)

• Record Type: Journal Article
• Authors: Kudoh, K.; Kudoh, T.; Tsuru, K.; Miyamoto, Y.
• Is Part Of: International journal of oral & maxillofacial surgery. Volume 46:Issue 3(2017:Mar.)
• Page Start: 355
• Page End: 359
• Publication Date: 2017-03
• Subjects: calcium pyrophosphate dihydrate -- Fourier transform infrared spectroscopy -- temporomandibular joint -- tophaceous pseudogout -- X-ray diffraction; Mouth -- Surgery -- Periodicals; Maxilla -- Surgery -- Periodicals; Dentistry -- Periodicals; Dentistry, Operative; Oral Surgical Procedures; Surgery, Oral; Dentistry; Maxilla -- Surgery; Mouth -- Surgery; Electronic journals; Periodicals; 617.52059
• DOI: 10.1016/j.ijom.2016.08.018
• Languages: English
• ISSNs: 0901-5027

Abstract

Abstract: A case of tophaceous pseudogout (i.e., calcium pyrophosphate dihydrate (CPPD) crystal deposition disease) in the temporomandibular joint (TMJ), extending to the base of the skull, is reported. A 38-year-old man was referred to the hospital with mild pain in the right chin and tip of the tongue. Panoramic radiography showed a large calcified mass around the right TMJ. Computed tomography imaging revealed a large, granular, calcified mass surrounding the right condylar head and extending to the base of the skull. The mass was clinically and radiographically suspected to be a pseudogout lesion. A biopsy specimen was collected under general anaesthesia to confirm the diagnosis. On histology, the mass was found to contain deposits of numerous rod-shaped and rhomboid crystals, which suggested tophaceous pseudogout. The deposits were identified as CPPD crystal deposition, based on analysis by X-ray diffraction and Fourier transform infrared spectroscopy. These two crystallography methods were useful in confirming the diagnosis of CPPD crystal deposition disease in the TMJ.