Sonographic Characterization of Mixed Crystal Arthropathy Due to Monosodium Urate and Calcium Pyrophosphate Dihydrate: The Triple-Contour Sign

2011 ◽  
Vol 30 (6) ◽  
pp. 861-862 ◽  
Author(s):  
Angel Checa ◽  
Heidi Wong ◽  
William Chun
Keyword(s):  
Mixed Crystal ◽  
Calcium Pyrophosphate ◽  
Calcium Pyrophosphate Dihydrate ◽  
Monosodium Urate ◽  
Pyrophosphate Dihydrate

Crystal-Induced Joint Disease

2019 ◽  
Author(s):  
N Lawrence Edwards
Keyword(s):  
Inflammatory Arthritis ◽  
Gouty Arthritis ◽  
Clinical Manifestations ◽  
Calcium Pyrophosphate ◽  
Calcium Pyrophosphate Dihydrate ◽  
Monosodium Urate ◽  
Crystal Deposition ◽  
Acute Gouty Arthritis ◽  
Crystal Arthritis ◽  
Pyrophosphate Dihydrate

The destructive potential of intracellular crystals has been recognized for over a century. The mechanisms by which crystals induce inflammation and bone and cartilage destruction have been elucidated over the past decade. The three most common crystal-induced arthropathies are caused by precipitation of monosodium urate monohydrate, calcium pyrophosphate dihydrate (CPP) and basic calcium phosphate. The definition, epidemiology, pathogenesis and etiology, diagnosis, and treatment of gout and CPP crystal deposition are reviewed, as well as the clinical stages of gout (i.e., acute gouty arthritis, intercritical gout, advanced gout, nonclassic presentations of gout, and other conditions associated with gout). Also reviewed are the clinical manifestations of calcium pyrophosphate dihydrate deposition disease (CPPD), such as asymptomatic CPPD, osteoarthritis with CPPD, acute CPP crystal arthritis, and chronic CPP crystal inflammatory arthritis. Figures illustrate renal transport of urate, monosodium urate crystals, acute gouty flare, advanced gouty arthritis, gouty synovial fluid, radiographic changes of advanced gout, ultrasound appearance of the femoral intercondylar cartilage, pharmacologic management of gout, the effect of gender and age on knee chondrocalcinosis, radiographs of chondrocalcinosis, and compensated polarized microscopy of CPPD. Tables present the major factors responsible for hyperuricemia, characteristics of classic gouty flares, antiinflammatory therapy for gout, and urate-lowering therapy. This chapter contains 90 references. This review contains 11 figures, 12 tables, and 88 references. Keywords: acute gouty arthritis, intercritical gout, advanced gout, asymptomatic CPPD, osteoarthritis with CPPD, acute CPP crystal arthritis, chronic CPP crystal inflammatory arthritis

Hydroxyapatite Associated Disease in an Elderly Female: Differentiation from Aseptic Necrosis

1989 ◽  
Vol 34 (2) ◽  
pp. 438-439
Author(s):  
D.F. Smith ◽  
D.M. Reid
Keyword(s):  
Clinical Practice ◽  
Calcium Pyrophosphate ◽  
Calcium Pyrophosphate Dihydrate ◽  
Monosodium Urate ◽  
Aseptic Necrosis ◽  
Hydroxy Apatite ◽  
Elderly Female ◽  
Crystal Arthropathies ◽  
Pyrophosphate Dihydrate ◽  
Destructive Arthropathy

The crystal arthropathies caused by monosodium urate and calcium pyrophosphate dihydrate are commonly recognised, but the destructive arthropathy associated with the deposition of calcium hydroxy-apatite is less well known in general clinical practice.1 We describe a case with many of the classical features of hydroxy-apatite associated disease and discuss the features differentiating the condition from aseptic necrosis.

Crystal-Induced Joint Disease

2019 ◽  
Author(s):  
N Lawrence Edwards
Keyword(s):  
Inflammatory Arthritis ◽  
Gouty Arthritis ◽  
Clinical Manifestations ◽  
Calcium Pyrophosphate ◽  
Calcium Pyrophosphate Dihydrate ◽  
Monosodium Urate ◽  
Crystal Deposition ◽  
Acute Gouty Arthritis ◽  
Crystal Arthritis ◽  
Pyrophosphate Dihydrate

The destructive potential of intracellular crystals has been recognized for over a century. The mechanisms by which crystals induce inflammation and bone and cartilage destruction have been elucidated over the past decade. The three most common crystal-induced arthropathies are caused by precipitation of monosodium urate monohydrate, calcium pyrophosphate dihydrate (CPP) and basic calcium phosphate. The definition, epidemiology, pathogenesis and etiology, diagnosis, and treatment of gout and CPP crystal deposition are reviewed, as well as the clinical stages of gout (i.e., acute gouty arthritis, intercritical gout, advanced gout, nonclassic presentations of gout, and other conditions associated with gout). Also reviewed are the clinical manifestations of calcium pyrophosphate dihydrate deposition disease (CPPD), such as asymptomatic CPPD, osteoarthritis with CPPD, acute CPP crystal arthritis, and chronic CPP crystal inflammatory arthritis. Figures illustrate renal transport of urate, monosodium urate crystals, acute gouty flare, advanced gouty arthritis, gouty synovial fluid, radiographic changes of advanced gout, ultrasound appearance of the femoral intercondylar cartilage, pharmacologic management of gout, the effect of gender and age on knee chondrocalcinosis, radiographs of chondrocalcinosis, and compensated polarized microscopy of CPPD. Tables present the major factors responsible for hyperuricemia, characteristics of classic gouty flares, antiinflammatory therapy for gout, and urate-lowering therapy. This chapter contains 90 references. This review contains 11 figures, 12 tables, and 88 references. Keywords: acute gouty arthritis, intercritical gout, advanced gout, asymptomatic CPPD, osteoarthritis with CPPD, acute CPP crystal arthritis, chronic CPP crystal inflammatory arthritis

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