Tuesday, November 30

Skin pictures - Skin discoloration pictures - Pictures of Skin hyperpigmentation

Pictures of skin discoloration

Patchy irregular skin discoloration can be caused by various reasons.

The skin discoloration pictures and their brief description gives us a clear idea about the conditions and the ways to tackle them.
Changes in melanin pigmentation, diet, pregnancy, inflammation, growth of foreign organisms, diseases, hypercarotenemia, hypervascularization, cyanosis, mineral overload, medicines and jaundice can cause these various hues of discoloration.

Skin discoloration can be different and versicolor like white, brown, dark, red, pink, black, blue, orangish, yellowish, bronze and slate colors.

Skin discoloration and hyperpigmentation in Addison disease

Addison's disease, which is a disorder of adrenal gland insufficiency, increased tanning can be noted.
The manifestation of Addison disease in the skin primarily by hyperpigmentation.
Addison's disease
Hyperpigmentation pictures :United States president John F. Kennedy (1961-63), had Addison's Disease.

Sunburn

Sunburn is a burn to skin tissue due to over exposure to sun light. There is malady and pain with hot, red or reddish skin and associated fatigue and mild dizziness.
sunburn
Hyperpigmentation pictures: Sunburn

Tanning

Tanning is a process by which skin color is darkened due to exposure to ultraviolet rays.
Moderate exposure to sun light has benefits like enhancing the vitamin D production by the dermis.
Tanning
Hyper pigmentation pictures: Tanning

Freckles

Freckles are often visible in people with fair complexion and are concentrated clusters of melanin deposits.
Freckles contrast from moles and lentigines in that there is no increase in the number of melanin producing cells.
Freckles
Hyperpigmentation pictures: Freckles

Lentigo

Lentigo (plural lentigines) is a benign hyperplasia (proliferation of cells) of melanocytes.
Regardless of sun exposure lentigo is stable in color and differ from moles in its linear spread, whereas moles are multi-layer nests of melanocytes.
lentigo
Hyperpigmentation pictures: Lentigo

Acanthosis nigricans

Acanthosis nigricans is brown to black, velvety, poorly defined skin discoloration.
Acanthosis nigricans dark brown coloration is usually found in the body folds like groins, armpits, neck folds etc.
Ancanthosis nigricans
Hyperpigmentation pictures: Acanthosis nigricans

Scleroderma diabeticorum

Scleroderma diabeticorum is a rare disorder affecting people with type 2 diabetes.
Scleroderma diabeticorum causes thickening of epidermis on the upper back and the back of the neck with excess black or dark brown melanin deposits.
Scleroderma diabeticorum
Hyperpigmentation pictures: Scleroderma diabeticorum

Albinism

(achromia) is a hypopigmentary disorder which is congenital.
Albinism results from defect in production of melanin pigment due to dysfunction of melanocytes (melanin producing cells) in the skin, hair and eyes.
albinism
Hypo-pigmentation: Albinism

Leucism

Leucism, white skin coloration, is a result of defects in neural crest pigment cell differentiation.
Unlike albinism wherein the melanocytes are very much present but they fail to produce melanin pigment only, here the discoloration is caused due to defect in the embryonic development and there is partial or complete absence of pigment cells.
leucism
Hypopigmentation pictures: Leucism

Vitiligo

In , a chronic disorder, loss of pigment (depigmentation) occurs in patches leading aesthetic disfigurement of the affected individual.
These depigmentation patches occur usually on the extremities and around body orifices like umbilicus, mouth, genitalia, nostrils and eyes.
vitiligo
Hypo-pigmentation pictures: Vitiligo
(Image: James Heilman, MD)

Tinea versicolor

is caused by yeasts (fungi) Malassezia globosa and .
The first signs of tinea versicolor infection are small spots of pale discoloration, usually lighter than the surrounding area, developing on the oily areas of the body, such as back, upper arms and shoulder giving rise to itching.
merged white spots of tinea versicolor
Tinea versicolor

Nevus depigmentosus

Nevus depigmentosus are harmless non-progressive hypopigmented stable localised patches.
Nevus depigmentosus patches result from localised abnormalities in the function of melanocytes which fail to produce pigments.
Nevus depigmentosus

Mongolian spot

, also known as "Mongolian blue spot," is a benign, flat, congenital birthmark with wavy borders and irregular shape.
Mongolian spot on six month old baby
(image: abby lu)
The blue discoloration is caused by melanocytes, melanin containing cells, that are deep under the skin.


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