articular chondrocalcinosis

a disease characterized by deposits of calcium pyrophosphate crystals free of urate in synovial fluid, articular cartilage, and adjacent soft tissue; causes various forms of arthritis commonly characterized by goutlike attacks of pain, swelling of joints, and radiologic evidence of calcification in articular cartilage (pseudogout); sometimes inherited as an autosomal dominant trait and associated with certain diseases in others.