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Proliferating trichilemmal cyst

Disease definition

Proliferating trichilemmal tumor is a rare large, multinodular, usually benign, tumor that is generally located in the posterior part of the scalp in aged women (over 50 years). It first appears as a painless nodule that later grows into a solid or partially cystic tumor that is mobile over the underlying subcutaneous tissues. It can present ulceration, inflammation or even bleeding and can cause necrosis of the adjacent tissues.

ORPHA:492

  • Synonym(s): -
  • Prevalence: -
  • Inheritance: -
  • Age of onset: Adult
  • ICD-10: L72.1
  • OMIM: -
  • UMLS: -
  • MeSH: -
  • GARD: 4509
  • MedDRA: -

Additional information

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