Medical term:
melanosis
melanosis
[mel″ah-no´sis]1. disordered melanin production, with darkening of the skin; called also melanism.
2. a disorder of pigment metabolism.
melanosis co´li brown-black discoloration of the mucosa of the colon.
melanosis i´ridis (melanosis of the iris) abnormal pigmentation of the iris by infiltration of melanoblasts.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
mel·a·no·sis
(mel'ă-nō'sis),Abnormal dark brown or brown-black pigmentation of various tissues or organs, as the result of melanin or, in some situations, other substances that resemble melanin to varying degrees; for example, melanosis of the skin may occur in widespread metastatic melanoma, sunburn, during pregnancy, and as a result of chronic infections.
[melano- + G. -osis, condition]
Farlex Partner Medical Dictionary © Farlex 2012
melanosis
(mĕl′ə-nō′sĭs)n. pl. melano·ses (-sēz)
Abnormally dark pigmentation of the skin or other tissues, resulting from a disorder of pigment metabolism. Also called melanism.
mel′a·not′ic (-nŏt′ĭk) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
melanosis
A general term for the deposition of melanin or melanin-like pigment (e.g., ceroid, lipofuscin) in tissues.Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
mel·a·no·sis
(mel'ă-nō'sis)Abnormal dark brown or brown-black pigmentation of various tissues or organs, as the result of melanin or, in some situations, other substances that resemble melanin to varying degrees; e.g., melanosis of the skin may occur in widespread metastatic melanoma, sunburn, during pregnancy, and as a result of chronic infections.
[melano- + G. -osis, condition]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
melanosis
Abnormal pigmentation of the tissues from excessive deposition of MELANIN. Melanosis coli is pigmentation of areas of the COLON due to an accumulation of MACROPHAGES containing melanin or a similar pigment.Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
melanosis
An abnormal accumulation of melanin pigment in the skin or other tissues. If there is a larger quantity than normal of pigment in the tissues of the eye, the condition is referred to as melanosis bulbi (melanosis oculi) or primary acquired melanosis when on the conjunctival epithelium and limbus. It may extend onto the peripheral cornea. It may be benign or become malignant, in which case nodules appear and excision or cryotherapy is required. See naevus of Ota.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann
mel·a·no·sis
(mel'ă-nō'sis)Abnormal dark brown or brown-black pigmentation of various tissues or organs, as the result of melanin or, in some situations, other substances that resemble melanin to varying degrees.
[melano- + G. -osis, condition]
Medical Dictionary for the Dental Professions © Farlex 2012
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