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A venous lake (also known as phlebectasis [1]) is a generally solitary, soft, compressible, dark blue to violaceous, 0.2- to 1-cm papule commonly found on sun-exposed surfaces of the vermilion border of the lip, face and ears. [2] [3] [4] Lesions generally occur among the elderly. [5] [6]
P. elata flower in bloom. Palicourea elata can be described as a shrub that is part of the Rubiaceae family, also commonly known as the coffee, madder, or bedstraw family. The Rubiaceae family is recognizable for having simple, opposite leaves with interpetiolar stipules and can come in the form of terrestrial trees, herbs, lianas, or shrubs like P. elata.
Also heart failure (insufficientia cordis) can make the face appear pale; the person then might have blue lips. Skin can also become pale as a result of vasoconstriction as part of the body's homeostatic systems in cold conditions, or if the skin is deficient in vitamin D, as seen in people who spend most of the time indoors, away from sunlight ...
Furthermore, mongolian spots, large birthmarks, and the consumption of food products with blue or purple dyes can also result in the bluish skin tissue discoloration and may be mistaken for cyanosis. [ 2 ] [ 3 ] Appropriate physical examination and history taking is a crucial part to diagnose cyanosis.
A blue nevus is a type of coloured mole, typically a single well-defined blue-black bump. [1] [2] The blue colour is caused by the pigment being deep in the skin. [4] Diagnosis is by visualisation and dermoscopy. [4] A biopsy is sometimes performed, or the whole lesion surgically removed. [3]
The species includes three varieties: [3]. Nemophila menziesii var. atomaria has white flowers with black dots, often with a faint blue tint or blue veins in the corolla. It is found on coastal bluffs or grassy slopes in Oregon, Northwestern California, the Central Coast of California, and the San Francisco Bay Area.
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This phenomenon is fairly common, with one in every 800 adults showing evidence of active lesions at any one time. It is more common in people who are experiencing stress or psychological conditions. The prevalence in females is double the prevalence in males, and it is two or three times more prevalent in people over the age of thirty-five. [2]