Porokeratosis

Porokeratosis is a rare pathology of the skin that may be subtle.

General

• Genetic.
• Several subtypes.

Notes:

• Not the same as punctate porokeratotic keratoderma.

Microscopic

Features:

• Cornoid lamella (pathognomonic) - key feature:
  • Compact keratosis over a hair follicle.
• +/-Rete ridge loss.

Images

• 
  Porokeratosis - intermed. mag. (WC)
• 
  Porokeratosis - high mag. (WC)
• 
  Porokeratosis - very high mag. (WC)

See also

• Non-malignant skin disease.