• Dermoid cysts arise from nests of epidermal cells that have been sequestered in the dermis during development or implanted as a result of trauma 
  • Congenital dermoid cysts are found at the sites of embryonic fusion, commonly at the mid-line of the body
  • They are Firm tense cyst.
  • lined by squamous epithelium and contain sebum, degenerate cells and, in some cases, hair.