Trichilemmoma

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Trichilemmoma is an uncommon skin tumour.

General

  • Benign neoplasm with features of the pilosebaceous follicular epithelium.[1]
  • Associated with nevus sebaceous.[2]
  • Muliple trichilemmomas associated with Cowden syndrome.[3]

Microscopic

Features:[3]

  • Superficial dermal lesion contiguous with the epidermis:
    • Core of lesion:
      • Cuboidal cells with round nuclei, eosinophilic-clear cytoplasm.
    • Periphery of lesion:
      • Surrounded by hyaline band.
      • Peripheral palisading.

DDx:

Images

See also

References

  1. URL: http://emedicine.medscape.com/article/1059940-overview. Accessed on: 2 September 2011.
  2. Baykal, C.; Buyukbabani, N.; Yazganoglu, KD.; Saglik, E. (Jan 2006). "[Tumors associated with nevus sebaceous].". J Dtsch Dermatol Ges 4 (1): 28-31. doi:10.1111/j.1610-0387.2006.05855.x. PMID 16503928.
  3. 3.0 3.1 Busam, Klaus J. (2009). Dermatopathology: A Volume in the Foundations in Diagnostic Pathology Series (1st ed.). Saunders. pp. 386. ISBN 978-0443066542.
  4. 4.0 4.1 URL: http://ccr.cancer.gov/staff/gallery.asp?profileid=12822. Accessed on: 2 September 2011.
  5. URL: http://dermatlas.med.jhmi.edu/derm/indexDisplay.cfm?ImageID=667496720. Accessed on: 2 September 2011.