melanocytosis


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melanocytosis

Excessive numbers of MELANOCYTES.
References in periodicals archive ?
The melanocytosis also affects the oral cavity, nasal mucosa, external auditory canal, tympanic membrane, orbital fissures, meninges and the brain.
Asymptorr, tic neurocutaneous melanocytosis in patients with large congenital melanocytic nevi: a study of cases from an Internet-based registry.
Ocular/Oculodermal melanocytosis: Ocular or oculodermal melanocytosis is a condition characterized by hyperpigmentation of the episclera, uvea and skin, and is more common in black, Hispanic and Asian populations.
a) Iris melanocytosis associated with increased risk of developing a uveal melanoma and should be referred
Large or multiple congenital melanocytic nevi: Occurrence of neurocutaneous melanocytosis in 1008 persons.
Dermal melanocytosis includes a variety of pigmented lesions that are formed from the aberrant development of neural crest-derived melanocytes as they migrate to the dermis during embryogenesis [4].
Nests, which may be present in melanoma in situ, but not in actinic melanocytosis.
A person who has a condition known as ocular melanocytosis, in which a number of nevi are present in the eye, has an increased risk for ocular melanoma.
3) Melanocytic lesions include naevus, melanoma racial melanosis, primary acquired melanosis and other ocular surface conditions like ocular melanocytosis and secondary pigmentary deposition.
16) It can be divided clinically into ocular melanocytosis and oculodermal melanocytosis (Naevus of Ota), the latter referring to when the periocular skin is also affected (unilaterally), most commonly in the distribution of the first and second divisions of the trigeminal nerve.
Dermal melanocytosis is thought to be due to the failure of migration of dermal melanocytes from the neural crest to the epidermal basal cell layer during fetal life, resulting in the presence of melanocytes in the dermis.