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Signs and symptoms. Urticaria pigmentosa is characterized by excessive amounts of mast cells in the skin. Red or brown spots are often seen on the skin, typically around the chest, forehead, and back. These mast cells, when irritated (e.g. by rubbing the skin, heat exposure), produce too much histamine, triggering an allergic reaction that ...
They consist of irregular patches of orange or brown pigmentation with characteristic "cayenne pepper" spots appearing within and at the edge of old lesions. There are usually no symptoms, although there may be some slight itching, but there is no pain.
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 ...
The brown thrasher is bright reddish-brown above with thin, dark streaks on its buffy underparts. It has a whitish-colored chest with distinguished teardrop-shaped markings on its chest. Its long, rufous tail is rounded with paler corners, and eyes are a brilliant yellow. Its bill is brownish, long, and curves downward.
It ranges between 0.5 – 6 mm in diameter and usually several are present, typically on the chest and arms, and increasing in number with age. If scratched, they may bleed. They are a harmless benign tumour, containing an abnormal proliferation of blood vessels, and have no relationship to cancer.
Liver spots (also known as age spot, solar lentigo, [1] " lentigo senilis ", [1] : 686 " old age spot ", [2] " senile freckle ") [2] are blemishes on the skin associated with aging [3] and exposure to ultraviolet radiation from the sun. [4] They range in color from light brown [5] to red or black and are located in areas most often exposed to ...
Specialty. Dermatology. Carotenosis is a benign and reversible medical condition where an excess of dietary carotenoids results in orange discoloration of the outermost skin layer. The discoloration is most easily observed in light-skinned people and may be mistaken for jaundice. [1] [2] : 540 [3] : 681 Carotenoids are lipid-soluble compounds ...
Ground-glass opacity (GGO) is a finding seen on chest x-ray (radiograph) or computed tomography (CT) imaging of the lungs. It is typically defined as an area of hazy opacification (x-ray) or increased attenuation (CT) due to air displacement by fluid, airway collapse, fibrosis , or a neoplastic process . [1]
These blotches are often located along the leaf mid-vein. Twigs are also infected and sunken brown spots, which develop on the tissue, will cause twig dieback. Infected leaves usually drop early ...
KS lesions are nodules or blotches that may be red, purple, brown, or black, and are usually papular. [citation needed] They are typically found on the skin, but spread elsewhere is common, especially the mouth, gastrointestinal tract and respiratory tract.