Masticatory muscle tendon-aponeurosis hyperplasia exhibits heterotopic calcification in tendons

作者：Sato T^*; Hori N; Nakamoto N; Akita M; Yoda T

来源：Oral Diseases, 2014, 20(4): 404-408.

DOI：10.1111/odi.12140

• heterotopic calcification
• electron microscopy
• masticatory muscle tendon-aponeurosis hyperplasia
• energy-dispersive X-ray analysis

Objective %26lt;br%26gt;Masticatory muscle tendon-aponeurosis hyperplasia is a new disease entity associated with limited mouth opening. In this study, we analyzed the microstructural characteristics of muscles and tendons in masticatory muscle tendon-aponeurosis hyperplasia by electron microscopy and energy-dispersive X-ray analysis to determine the elemental composition. %26lt;br%26gt;Methods %26lt;br%26gt;Histological analysis was performed to detect the calcification. Transmission electron microscopy and scanning electron microscopy were conducted to clarify the microstructural characteristics of muscles and tendons. Energy-dispersive X-ray microanalysis was performed to identify the distribution of elements. %26lt;br%26gt;Results %26lt;br%26gt;Mineralized nodules were observed in tendon tissues of masticatory muscle tendon-aponeurosis hyperplasia as compared with facial deformity. Electron microscopy revealed that the muscle and tendon tissues in masticatory muscle tendon-aponeurosis hyperplasia showed degenerative changes and distinctive histological findings as compared with tissues in facial deformity. We found that Ca, P, and Si were detected only in masticatory muscle tendon-aponeurosis hyperplasia. %26lt;br%26gt;Conclusion %26lt;br%26gt;We demonstrated that masticatory muscle tendon-aponeurosis hyperplasia exhibits heterotopic calcification in tendon tissues.

• 出版日期2014-5