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  2. Petechia - Wikipedia

    en.wikipedia.org/wiki/Petechia

    A petechia (/ p ɪ ˈ t iː k i ə /; [1] pl.: petechiae) is a small red or purple spot (≤4 mm in diameter) that can appear on the skin, conjunctiva, retina, and mucous membranes which is caused by haemorrhage of capillaries. [2] [3] The word is derived from Italian petecchia 'freckle', of obscure origin. [1]

  3. Purpura - Wikipedia

    en.wikipedia.org/wiki/Purpura

    Purpura (/ ˈ p ɜːr p jʊər ə / [1]) is a condition of red or purple discolored spots on the skin that do not blanch on applying pressure. The spots are caused by bleeding underneath the skin secondary to platelet disorders, vascular disorders, coagulation disorders, or other causes. [2]

  4. Birthmark - Wikipedia

    en.wikipedia.org/wiki/Birthmark

    The Mongolian spot is a congenital developmental condition exclusively involving the skin. The blue colour is caused by melanocytes , melanin -containing cells, that are deep under the skin. [ 6 ] Usually, as multiple spots or one large patch, it covers one or more of the lumbosacral area (lower back ), the buttocks , sides, and shoulders . [ 6 ]

  5. Rash - Wikipedia

    en.wikipedia.org/wiki/Rash

    Small red dots on the skin, or larger, bruise-like spots that appeared after taking medicine Anywhere Pityriasis Rosea: Started with a single scaly, red and slightly itchy spot, and within a few days, did large numbers of smaller patches of the rash, some red and/or others tan Chest and abdomen Dermatitis herpetiformis

  6. Spider angioma - Wikipedia

    en.wikipedia.org/wiki/Spider_angioma

    A spider angioma or spider naevus (plural: spider naevi), also nevus araneus, is a type of telangiectasis [2] (swollen, spider-like blood vessels on the skin) found slightly beneath the skin's surface, often containing a central red spot and deep reddish extensions (see Blood color) which radiate outwards like a spider's web or a spider's legs.

  7. Schamberg disease - Wikipedia

    en.wikipedia.org/wiki/Schamberg_disease

    Schamberg's disease is caused by leaky blood vessels near the surface of the skin, capillaries, which allow red blood cells to slip through into the skin. [3] The red blood cells in the skin then fall apart and release their iron, which is released from hemoglobin. [3] The iron causes a rust color and this accounts for the orange tint of the ...

  8. Noonan syndrome with multiple lentigines - Wikipedia

    en.wikipedia.org/wiki/Noonan_syndrome_with...

    An alternative name of the condition, LEOPARD syndrome, is a mnemonic, originally coined in 1969, [5] as the condition is characterized by some of the following seven conditions, the first letters of which spell LEOPARD, along with the characteristic "freckling" of the skin, caused by the lentigines that is reminiscent of the large cat.

  9. Pityriasis rosea - Wikipedia

    en.wikipedia.org/wiki/Pityriasis_rosea

    Pityriasis rosea is a type of skin rash. [2] Classically, it begins with a single red and slightly scaly area known as a "herald patch". [2] This is then followed, days to weeks later, by an eruption of many smaller scaly spots; pinkish with a red edge in people with light skin and greyish in darker skin. [4]