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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]
Gout (/ ɡ aʊ t / GOWT [7]) is a form of inflammatory arthritis characterized by recurrent attacks of pain in a red, tender, hot, and swollen joint, [2] [8] caused by the deposition of needle-like crystals of uric acid known as monosodium urate crystals. [9]
Gout in foot joints is most common, with gout often affecting the big toe joint. However, other joints can be affected as well, particularly those in the lower body. For example, gout in ankles or ...
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 ...
English: Microscopy with polarized light of tissue by a metatarsal joint, showing crystals whereof some (one annotated) have rhomboid shape and weak positive nirefringence, consistent with calcium pyrophosphate dihydrate crystal deposition disease (pseudogout).
Deposition of dihydrate crystals in cartilage are responsible for the severe joint pain in cases of calcium pyrophosphate deposition disease (pseudo gout) whose symptoms are similar to those of gout. [1] Ca 2 P 2 O 7 is commonly used as a mild abrasive agent in toothpastes because of its insolubility and nonreactivity toward fluoride. [2]
Arthritis of joints involves inflammation of the synovial membrane. Joints become swollen, tender and warm, and stiffness limits their movement. With time, multiple joints are affected (polyarthritis). Most commonly involved are the small joints of the hands, feet and cervical spine, but larger joints like the shoulder and knee can also be ...
Pseudogout (also referred to as calcium pyrophosphate dihydrate crystal deposition disease) is another type of crystalline arthritis that presents very similarly to gout but is caused by the deposition of rhomboid-shaped calcium pyrophosphate dihydrate (CPPD) crystals. The knees, wrists, and fingers are the most common joints affected by ...