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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: -
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