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Acanthosis nigricans is a medical sign characterised by brown-to-black, poorly defined, velvety hyperpigmentation of the skin. [1] It is usually found in body folds, [2] such as the posterior and lateral folds of the neck, the armpits, groin, navel, forehead and other areas.
It has a small head and thick neck and grows to a length of about 43 cm (17 in). It is smooth and glossy, with a silvery or bronze colour with about ten slender longitudinal dark lines running along the body. The head is usually darker than the body. [2]
However, in light skinned populations, namely those of European descent, women have darker skin than men. [11] [110] It is unknown why skin color is sexually dimorphic in some populations. White women may have darker skin than white men because the female sex hormone estrogen is known to increase skin pigmentation in lighter-skinned populations ...
A cat with black point coloration. Points are specific areas of an animal coat that are colored differently from the main body colorations. Point coloration may be represented by a pale body color and relatively darker extremities, such as face, ears, feet, tail, and external sex organs, as seen on Siamese cats. [1]
Stork bites occur in a significant number of newborns, with estimates ranging from 22–40 percent [2] to 40–70 percent; [3] they are reported more frequently for white babies than for infants of other races. [2] They result from a dilation of capillaries in the skin, [3] and may become darker when the child cries or strains. [4]
At less than $20, this navy blue floral print dress is a great closet addition you can wear many ways this season. When the temps are still mild, wear it with ballet flats or low-top sneakers.
Occurring in about 1% of infants in the United States, it is located in the area of the head and neck 15% of the time, but may occur anywhere on the body. It may appear as light brown in fair-skinned people, to almost black in people with darker skin.
White meat, like chicken breast, is usually considered healthier than dark meat. But the differences between them are small, dietitians say. Here's how to pick.