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Pathology

Authoring team

Epidermal cysts are characterized by:

  • stratified squamous epithelial lining
  • keratin contents:
    • laminated distribution
    • often birefringent
    • may be associated with melanin and calcification
  • occasional cholesterol clefts
  • foreign body reaction around cyst:
    • multinucleate giant cells
    • believed to be due to spillage of cyst contents

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