Dyschromia refers to an alteration of the color of the skin or nails.
Hyperchromia can refer to
hyperpigmentation
Hyperpigmentation, also known as the dark spots or circles on the skin, is the darkening of an area of Human skin, skin or nail (anatomy), nails caused by increased melanin.
Causes
Hyperpigmentation can be caused by sun damage, inflammation, or ...
,
and hypochromia can refer to
hypopigmentation
Hypopigmentation is characterized specifically as an area of Human skin, skin becoming lighter than the baseline skin color, but not completely devoid of skin pigment, pigment. This is not to be confused with depigmentation, which is characterize ...
.
Dyschromatoses involve both hyperpigmented and hypopigmented macules.
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See also
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Albinism
Albinism is the congenital absence of melanin in an animal or plant resulting in white hair, feathers, scales and skin and reddish pink or blue eyes. Individuals with the condition are referred to as albinos.
Varied use and interpretation of ...
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Albino and white squirrels
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Amelanism
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Chimera (genetics)
A genetic chimerism or chimera ( or ) is a single organism composed of cells of different genotype, genotypes. Animal chimeras can be produced by the fusion of two (or more) embryos. In plants and some animal chimeras, Mosaic (genetics), mos ...
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Coloboma
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Erythrism
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Heterochromia iridum
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Leucism
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Melanism
Melanism is the congenital excess of melanin in an organism resulting in dark pigment.
Pseudomelanism, also called abundism, is another variant of pigmentation, identifiable by dark spots or enlarged stripes, which cover a large part of the bod ...
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Piebaldism
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Vitiligo
Vitiligo (, ) is a chronic autoimmune disorder that causes patches of skin to lose pigment or color. The cause of vitiligo is unknown, but it may be related to immune system changes, genetic factors, stress, or sun exposure, and susceptibili ...
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Xanthochromism
References
Cutaneous congenital anomalies
Disturbances of human pigmentation
Disturbances of pigmentation
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