What causes digital mucous cysts (DMCs)?

Updated: Jul 31, 2018
  • Author: Murad Alam, MD; Chief Editor: Dirk M Elston, MD  more...
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Answer

The causes of digital mucous cysts remain unclear. Historically, a variety of etiologies, including a tuberculous process, have been suggested. At present, it is believed that mucoid degeneration of connective tissue associated with proximal osteoarthritic changes is responsible for cyst formation. Trauma also may be a causative factor in some cases.


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