Sebaceous Cyst

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Examination

lump

  • site
    • hairy areas
    • subcutaneous - but attached to overlying skin
  • variable size
  • shape
    • hemispherical
  • edge
    • well-defined 
  • consistency
    • hard
    • ? some fluctuation
  • other
    • not tranilluminable
    • diagnosed if has punctum

Complications

  • foreign body reaction mimics infection

Pathology

  • derived from epithelial elements of hair follicle
 

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