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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 ().
Measures of how well a person is circulating oxygen-rich blood through the body, called perfusion, could also play a role. That’s not a condition specific to skin color.
Tissue hypoxia refers to low levels of oxygen in the tissues of the body and the term hypoxia is a general term for low levels of oxygen. [2] Hypoxemia is usually caused by pulmonary disease whereas tissue oxygenation requires additionally adequate circulation of blood and perfusion of tissue to meet metabolic demands. [4]
Research has shown that the presence of certain inflammatory blood markers is associated with muscle breakdown and/or problems with how muscles use energy. However, scientists aren’t entirely ...
A skin ulcer is often visible in the event of exposure to heat or cold, irritation, or a problem with blood circulation. They can also be caused due to a lack of mobility, which causes prolonged pressure on the tissues. This stress in the blood circulation is transformed to a skin ulcer, commonly known as bedsores or decubitus ulcers. [1]
Purpura fulminans is an acute, often fatal, thrombotic disorder which manifests as blood spots, bruising and discolouration of the skin resulting from coagulation in small blood vessels within the skin and rapidly leads to skin necrosis and disseminated intravascular coagulation. [2] [3]
The genetic skin disorders collectively known as epidermolysis bullosa display skin fragility and a tendency to develop chronic, non-healing wounds. [12] Comorbid ailments that may contribute to the formation of chronic wounds include vasculitis (an inflammation of blood vessels), immune suppression , pyoderma gangrenosum , and diseases that ...
Remodeling of the immune system in the elderly is thought to be characterized by an inability to control systemic inflammation. With age, the number of lymphocytes being produced decreases, and the composition and quality of the mature lymphocyte pool changes. [ 6 ]