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.