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Microangiopathy (also known as microvascular disease, small vessel disease (SVD) or microvascular dysfunction) is a disease of the microvessels, small blood vessels in the microcirculation. [1] It can be contrasted to macroangiopathies such as atherosclerosis , where large and medium-sized arteries (e.g., aorta , carotid and coronary arteries ...
Lipohyalinosis is a cerebral small vessel disease affecting the small arteries, arterioles or capillaries in the brain.Originally defined by C. Miller Fisher as 'segmental arteriolar wall disorganisation', it is characterized by vessel wall thickening and a resultant reduction in luminal diameter.
Clinical features may include constitutional symptoms like fever, arthralgia, myalgia, loss of appetite, weight loss and fatigue.A variety of organs can be affected, which causes a wide range of symptoms such as cough, shortness of breath, hemoptysis (coughing up of blood), symptoms of kidney failure, skin manifestations (palpable purpura and livedo racemosa [1]), seizures or peripheral ...
At the beginning, lipohyalinosis was thought to be the main small vessel pathology, but microatheroma now is thought to be the most common mechanism of arterial occlusion (or stenosis). Occasionally, atheroma in the parent artery blocks the orifice of the penetrating artery (luminal atheroma), or atheroma involves the origin of the penetrating ...
Cutaneous small-vessel vasculitis (CSVV) is inflammation of small blood vessels, usually accompanied by small lumps beneath the skin. [1]: 831 [2] The condition is also known as hypersensitivity vasculitis, cutaneous leukocytoclastic vasculitis, hypersensitivity angiitis, cutaneous leukocytoclastic angiitis, cutaneous necrotizing vasculitis and cutaneous necrotizing venulitis, [3]
Performance on this scale is associated with integrity of white matter, periventricular myelination, and cortical microinfarcts. Assessments of cortical microinfarcts have had the highest rates with being associated with cognitive degeneration. [7] This lower cognition specifically affects perceptual speed and memory (semantic and episodic).
Microvascular angina is a diagnosis of exclusion. Typically this will necessitate both a clinical diagnosis, appropriate stress testing, and a coronary angiogram that meet the above criteria. Cardiac MRI can be used to diagnose microvascular angina. Studies are ongoing to validate this approach.
A normal MRI makes the diagnosis unlikely. [5] Inflammatory markers such as C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) are usually normal. And analysis of the cerebrospinal fluid shows a non-specific pattern with mildly elevated leukocytes and increased protein, especially in small vessel disease. [5]