Dermoid Cyst

• Figure 2.15 A: Dermoid cyst (Reprint from Laxer RM, ed. The Hospital for Sick Children: Atlas of Pediatrics. Philadelphia, PA: Current Medicine; 2005) B: Urticaria pigmentosa (Courtesy of Dr. Michelle B. Bain) C: Urticaria pigmentosa (Courtesy of Dr. Paul Getz)

  Seen typically in infants along embryonic fusion plane
• Presents as discrete, subcutaneous nodule commonly around eyes or nasal root
• Histology: lined by stratified squamous epithelium (with granular layer) containing appendageal elements
• CT/MRI should be performed to rule out connection to CNS before excision