Nevus of Ota

Nevus of Ota 

  • Also called oculodermal melanocytosis.
  • Caused by diffuse distribution of proliferated melanocytes.

Clinical features:

  • Asymptomatic.
  • Unilateral facial and/or ocular slate-blue pigmentation.
  • Usually follows the distribution of trigeminal nerve (V1 and V2).
  • Rarely undergoes malignant transformation.
  • No treatment is required.