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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]
It looks like small red blotches or tiny, red pinpoint marks on the skin. These marks can appear anywhere but typically appear in areas where there is more pressure, such as the back, palms, and ...
Light yellowish pink [6]? ? ? Methamphetamine: Substance Deep reddish orange/Dark reddish brown [6] No reaction ? Blue Methaqualone: Substance No reaction No reaction ? No reaction Methoxetamine: Substance Pink (slow) Yellow > green > red ? Slow pink > red Methylone [1] Substance Brown Orange/brown ? Blue Methylphenidate: Substance Moderate ...
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]
Initially red to pink, flat spots (formally, "macules") and raised bumps (formally, "papules") may be seen on the skin. [5] [6] Once fully developed, the classic appearance is "non-blanching, palpable purpura". [6] [5] [7] This appears as deep red to purple spots that feel raised to the touch. Purpura refers to the red-purple discolored spots ...
[2] [4] Early stains are usually flat and pink in appearance. As the child matures, the color may deepen to a dark red or purplish color. [2] In adulthood, thickening of the lesion or the development of small lumps may occur. [2] [5] Port-wine stains may be part of a syndrome such as Sturge–Weber syndrome or Klippel–Trénaunay–Weber ...
Livedo reticularis is a common skin finding consisting of a mottled reticulated vascular pattern that appears as a lace-like purplish discoloration of the skin. [1] The discoloration is caused by reduction in blood flow through the arterioles that supply the cutaneous capillaries, resulting in deoxygenated blood showing as blue discoloration ().
Solar purpura (also known as "Actinic purpura," and "Senile purpura") is a skin condition characterized by large, sharply outlined, 1- to 5-cm, dark purplish-red ecchymoses appearing on the dorsa of the forearms and less often the hands. [1] The condition is most common in elderly people of European descent.
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