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melanosis
(redirected from melanoses)

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melanosis /mel·a·no·sis/ (mel?ah-no´sis) melanism; disordered production of melanin, with darkening of the skin.
melanosis co´li  black or dark brown discoloration of the mucosa of the colon, due to the presence of pigment-laden (not true melanin) macrophages within the lamina propria.
neurocutaneous melanosis  giant hairy nevus accompanied by malignant melanomas of the meninges.

mel·a·no·sis (ml-nss)
n.
Abnormally dark pigmentation of the skin or other tissues, resulting from a disorder of pigment metabolism. Also called melanism.

mela·notic (-ntk) adj.

melanosis (mel´nō´sis),
n the condition in which melanin pigments appear in the tissues. Melanosis is normal in the gingivae of most dark-skinned individuals and occasionally in those with light skin.

melanosis
1. a condition characterized by dark pigmentary deposits.
2. a disorder of pigment metabolism.

melanosis coli
brown-black discoloration of the mucosa of the colon.
congenital melanosis
patches of melanin in the capsule and stroma of the liver or lung in the neonate.
liver melanosis
see hepatic lipofuscinosis.

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