Skin - Nonmelanocytic tumors
Other tumors of skin
Benign (mature) cystic teratoma

Author: Hillary Rose Elwood, M.D. (see Authors page)

Revised: 30 November 2016, last major update November 2016

Copyright: (c) 2001-2016,, Inc.

PubMed search: benign (mature) cystic teratoma skin

Cite this page: Benign (mature) cystic teratoma. website. Accessed October 17th, 2018.
Definition / general
  • Congenital tumor (extremely rare in skin) containing tissue components from all 3 germinal layers
Clinical features
  • Very rare with only scattered case reports
  • Lesions present at birth
  • Locations vary including face, back, neck, knee
Case reports
Microscopic (histologic) description
  • Cystic structure with elements from all 3 germinal layers (ectoderm, endoderm and mesoderm)
  • Variable tissue types may be present from the germinal layers:
    • Superficial ectoderm such as epidermis and appendages
    • Neuroectoderm (nervous tissue)
    • Mesoderm such as connective tissue, striated and smooth muscle
    • Endoderm such as respiratory epithelium, thyroid tissue, GI mucosa