Crystal Induced Arthropathies: A Pictorial Review

Crystal induced arthropathies are disorders involving crystal deposition in the articular and peri articular soft tissues with resultant inflammation. Gout (Figures 1 and 2) and calcium pyrophosphate dihydrate (CPPD) crystal deposition disease (Figures 3 and 4) are the two most common types of crystaldeposition arthritis [1]. The diagnosis is primarily based on clinical and laboratory findings, especially synovial fluid analysis [2]. Radiographs can further aid clinicians in establishing the correct diagnosis.