Pilar cyst

Pilar cyst 

Updated: 03/02/2021

© Jun Wang, MD, PhD

General features
  • AKA trichilemmal cyst, isthmus-catagen cyst or a "wen"
  • Most commonly seen in scalp
  • More common in women
  • May be familial with autosomal dominant inheritance
  • Probably originated from root sheath of hair follicle
Clinical features
  • Slow growing
  • Firm swelling
  • May be ruptured and inflamed
  • Easy to remove
Pathological features
Management
  • Excision



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