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Gout (/ ɡ aʊ t / GOWT [9]) is a form of inflammatory arthritis characterized by recurrent attacks of pain in a red, tender, hot, and swollen joint, [4] [10] caused by the deposition of needle-like crystals of uric acid known as monosodium urate crystals. [11] Pain typically comes on rapidly, reaching maximal intensity in less than 12 hours. [7]
Unless high blood levels of uric acid are determined in a clinical laboratory, hyperuricemia may not cause noticeable symptoms in most people. [5] Development of gout – which is a painful, short-term disorder – is the most common consequence of hyperuricemia, which causes deposition of uric acid crystals usually in joints of the extremities, but may also induce formation of kidney stones ...
Calcium pyrophosphate dihydrate ( CPPD) crystal deposition disease, also known as pseudogout and pyrophosphate arthropathy, is a rheumatologic disease which is thought to be secondary to abnormal accumulation of calcium pyrophosphate dihydrate crystals within joint soft tissues. [ 1] The knee joint is most commonly affected. [ 2]
Crystal arthropathy is a class of joint disorder (called arthropathy) that is characterized by accumulation of tiny crystals in one or more joints. Polarizing microscopy and application of other crystallographic techniques have improved identification of different microcrystals including monosodium urate, calcium pyrophosphate dihydrate ...
Acute septic arthritis, infectious arthritis, suppurative arthritis, pyogenic arthritis, [ 4] osteomyelitis, or joint infection is the invasion of a joint by an infectious agent resulting in joint inflammation. Generally speaking, symptoms typically include redness, heat and pain in a single joint associated with a decreased ability to move the ...
Tophus. A tophus (Latin: "stone", pl.: tophi) is a deposit of monosodium urate crystals, in people with longstanding high levels of uric acid (urate) in the blood, a condition known as hyperuricemia. Tophi are pathognomonic for the disease gout. Most people with tophi have had previous attacks of acute arthritis, eventually leading to the ...
[10] [5] [6] The most common forms are osteoarthritis (degenerative joint disease) and rheumatoid arthritis. [7] Osteoarthritis usually occurs with age and affects the fingers, knees, and hips. [7] [11] Rheumatoid arthritis is an autoimmune disorder that often affects the hands and feet. [7] Other types include gout, lupus, fibromyalgia, and ...
Joint effusion. A traumatic right knee effusion. Note the swelling lateral to the kneecap as marked by the arrow. Specialty. Orthopedics, rheumatology. A joint effusion is the presence of increased intra-articular fluid. [ 1] It may affect any joint. Commonly it involves the knee (see knee effusion ).