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Nevus of Ota is caused by the entrapment of melanocytes in the upper third of the dermis. It is found only on the face, most commonly unilaterally, rarely bilaterally and involves the first two branches of the trigeminal nerve. The sclera is involved in two-thirds of cases (causing an increased risk of glaucoma).
Similar to Nevus of Ota but occurring on shoulder and chest; blue in color Nevus of Ito also known as nevus fuscoceruleus acromiodeltoideus is a skin condition with similar features to the Nevus of Ota , but occurring in a different distribution.
Phakomatosis pigmentovascularis is a rare neurocutanous condition where there is coexistence of a capillary malformation (port-wine stain) with various melanocytic lesions, including dermal melanocytosis (Mongolian spots), nevus spilus, and nevus of Ota.
Giant pigmented nevus (bathing trunk nevus, congenital nevomelanocytic nevus, garment nevus, giant hairy nevus, nevus pigmentosus et pilosus) Halo nevus (leukoderma acquisitum centrifugum, perinevoid vitiligo, Sutton nevus) Hori's nevus (acquired bilateral nevus of Ota-like macules) Inherited patterned lentiginosis in black persons
Nevus (pl.: nevi) is a nonspecific medical term for a visible, circumscribed, chronic lesion of the skin or mucosa. [1] The term originates from nævus , which is Latin for " birthmark "; however, a nevus can be either congenital (present at birth) or acquired.
A nevus is a benign, freckle in the eye. These should be checked out and regular checks on the eye done to ensure it has not turned into a melanoma. Iris and conjuctival tumors (melanomas) - Present as a dark spot. Any spot which continues to grow on the iris and the conjunctiva should be checked out.
Melanocytic nevi and neoplasms are caused by either a proliferation of (1) melanocytes, or (2) nevus cells, a form of melanocyte, but which lack dendritic processes. Contents Top
Ocular melanosis (OM) is a blue-gray and/or brown lesion of the conjunctiva that can be separated into benign conjunctival epithelial melanosis (BCEM) and primary acquired melanosis (PAM), of which the latter is considered a risk factor for uveal melanoma. [1]