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Background <p>Synovial chondromatosis is a rare, slow-growing condition with nonspecific symptoms, making early diagnosis difficult. It generally affects the superior joint space of the temporomandibular joint and, in advanced stages, can cause destruction of the glenoid fossa and invasion of adjacent structures. </p> Objective <p>To report the first case of synovial chondromatosis associated with stenosis of the external auditory canal, with predominant involvement of the inferior joint space and atypical presentation.</p> Materials and methods <p>The patient required open temporomandibular joint surgery, in which endoscopically assisted open surgery was considered to improve visualization of the medial pole of the condyle and allow complete resection of the lesion.</p> Conclusion <p>The atypical presentation and involvement of neighboring structures highlight the importance of timely diagnosis and the use of combined surgical approaches in advanced cases.</p>

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External Auditory Canal Stenosis Secondary to Synovial Chondromatosis of the Temporomandibular Joint: A Case Report and Literature Review

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年4月2日

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  • Juan Pablo López,
  • María Paula Orjuela,
  • Santiago Torres,
  • Guillermo Gracia-Owens

摘要

Background

Synovial chondromatosis is a rare, slow-growing condition with nonspecific symptoms, making early diagnosis difficult. It generally affects the superior joint space of the temporomandibular joint and, in advanced stages, can cause destruction of the glenoid fossa and invasion of adjacent structures.

Objective

To report the first case of synovial chondromatosis associated with stenosis of the external auditory canal, with predominant involvement of the inferior joint space and atypical presentation.

Materials and methods

The patient required open temporomandibular joint surgery, in which endoscopically assisted open surgery was considered to improve visualization of the medial pole of the condyle and allow complete resection of the lesion.

Conclusion

The atypical presentation and involvement of neighboring structures highlight the importance of timely diagnosis and the use of combined surgical approaches in advanced cases.