<prompt> Lesions of Neavus of OTA commonly involves the following cranial nerveOculomotor nerveTrigeminal nerveFacial nerveSpinal accessory nerve  <response>: Nevus of Ota Nevus Fuscocaeruleus Ophthalmomaxillaris Melanocytes that have not migrated completely from the neural crest to the epidermis during the embryonic stage . Asian population most commonly affected, usually congenital Malignant melanoma has been repoed to develop in a nevus of Ota Clinical findings:- Blue to gray speckled macules or patches. Unilateral 90. Can be bilateral. Hori nevus: acquired bilateral bluegray macules, no mucosal involvement. Forehead, temple, malar area, or periorbital skin Branches of V1 and V2; mucosal involvement is possible and may involve the sclera, conjunctiva oculodermal melanocytosis and tympanic membrane; increased risk of glaucoma 10. Histology ;- Dendritic melanocytes are present and surrounded by fibrous sheaths; dermal melanophages, 5 types based on the locations of the dermal melanocytes, which are 1 superficial, 2 superficial dominant, 3 diffuse, 4 deep dominant, and 5 deep. Treatment:- Q-switched: alexandrite, Nd:YAG, and ruby lasers. Ref:- Dermatology pictorial review by Asra Ali; pg num;-165 