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Synovial chondromatosis of the middle ear: a rare differential diagnosis to cholesteatoma
  1. Karoline Feekings1,
  2. Romina Giacomodonato2 and
  3. Morten Høgsbro1
  1. 1ENT Surgery, Aalborg University Hospital, Aalborg, Denmark
  2. 2Pathology, Aalborg University Hospital, Aalborg, Denmark
  1. Correspondence to Dr Karoline Feekings; kfe{at}rn.dk

Abstract

Synovial chondromatosis (SC) is a rare benign disorder, usually found in larger joints. This case report describes an elderly woman with a bulging mass behind the left eardrum, slowly progressing in size. On surgical exploration and biopsy, the patient was diagnosed with SC of the incudomalleolar joint. Imaging and histopathological findings, surgical management and follow-up are being discussed. SC is a very rare finding in the middle ear and a differential diagnosis to cholesteatoma.

  • ear
  • nose and throat/otolaryngology
  • pathology
  • otolaryngology / ENT
  • orthopaedics

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Footnotes

  • Contributors MH is an ENT specialist and PhD and has had the original idea for the article. He performed the surgery and took the tissue samples. He also followed up on the patient postoperatively. He took the otomicroscopy pictures provided in the article and supervised KF in writing the manuscript. He also administered the patient consent form to the patient. RG is the diagnosing pathologist and was involved in the patient's care on this level. She provided pictures of the tissue stains and wrote a part of the text provided in the article. KF, an ENT specialist and researcher, had the task of literature research and writing the article, including all administrative tasks connected to publishing. All authors involved contributed substantially in revising the final manuscript.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer-reviewed.