<prompt> A lady came with complaints of a bluish lesion over left side of forehead and left eye. Shows irregular bluish lesion in left superior conjunctiva and forehead. What is most probable diagnosis ?Nevus of OtaNevus of ItoBeckers nevusMongolian spot  <response>: Nevus of Ota: Unilateral bluish grey colour discolouration. Along ophthalmic and maxillary division of Trigeminal nerve. Naevus of ito- along acromioclavicular nerve neckMongolian spots- Bluish discoloration in infants MC site is lower backBeckers nevus- Hyperpimented path with hyperichosis over upper trunk 