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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.
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
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.
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.
Nevocellular nevus; Nevocytic nevus; Nevoid melanosis; Nevus bleu; Nevus ceruleus; Nevus fuscoceruleus acromiodeltoideus; Nevus fuscoceruleus ophthalmomaxillaris; Nevus of Ito; Nevus of Ota; Nevus pigmentosus et pilosus; Nevus spilus; Nevus with architectural disorder; Noonan syndrome with multiple lentigines
Melanocytic tumors of uncertain malignant potential (MELTUMP) are melanocytic lesions in the dermis that cannot be classified by morphology as either benign naevi (moles) or malignant melanomas because the mass shows features of both.
Although a nevus and a melanoma are often treated as independent entities, there is evidence that a nevus can be a precursor for a melanoma. [1] Common mutations have been identified in nevi and melanomas. [2] [3] [4]