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A thrombus, or a blood clot, is a mobilized mass of blood cells that circulates within the body. [ 21 ] [ 22 ] Thrombi can occlude veins ( venous thrombosis ) or arteries (arterial thrombosis). The etiology of thrombosis is described by Virchow's Triad , which includes hemostasis, vascular wall damage, and hypercoagulability . [ 21 ]
Plaque build-up often doesn’t cause symptoms, but it can block blood flow to vital organs like your heart. Coronary artery disease occurs when atherosclerosis affects the arteries supplying ...
Superior vena cava syndrome (SVCS), is a group of symptoms caused by obstruction of the superior vena cava ("SVC"), a short, wide vessel carrying circulating blood into the heart. The majority of cases are caused by malignant tumors within the mediastinum , most commonly lung cancer and non-Hodgkin's lymphoma , directly compressing or invading ...
It can be caused by physical invasion or compression by a pathological process, or by thrombosis within the vein itself. It can also occur during pregnancy . Symptoms including high venous pressure in the lower limbs, decreased blood return to the heart, decreased cardiac output, placental separation and decreased kidney function have been ...
Deep vein thrombosis (DVT), that is, blood clots in the deep veins. Chronic venous insufficiency caused by DVT may be described as postthrombotic syndrome. DVT triggers an inflammatory response subsequently injuring the vein wall. [6] Superficial vein thrombosis. Phlebitis; May–Thurner syndrome. This is a rare condition in which blood clots ...
Blood vessel disorder generally refers to the narrowing, hardening or enlargement of arteries and veins. It is often due to the build-up of fatty deposits in the lumen of blood vessels or infection of the vessel wall. This can occur in various locations such as coronary blood vessels, peripheral arteries and veins.
Deep vein thrombosis (DVT) is a type of venous thrombosis involving the formation of a blood clot in a deep vein, most commonly in the legs or pelvis. [9] [a] A minority of DVTs occur in the arms. [11] Symptoms can include pain, swelling, redness, and enlarged veins in the affected area, but some DVTs have no symptoms. [1]
Peripheral arteries, which supply blood to the legs, arms, and pelvis, also experience marked narrowing due to plaque rupture and clots. Symptoms of the narrowing are pain and numbness within the arms or legs. Another significant location for plaque formation is the renal arteries, which supply blood to the kidneys.