Crystal deposition diseases

Gout ( ), also called rheumatic gout, is a form of inflammatory arthritis characterized by recurrent attacks of pain in a red, tender, hot, and swollen joint, caused by the deposition of needle-shaped crystals of the monosodium salt of uric acid. Pain typically comes on rapidly, reaching maximal intensity in less than 12 hours. In about half of cases, the joint at the base of the big toe is affected (Podagra). It may also result in tophi, kidney stones, or kidney damage.

disorder characterized by deposits of hydroxyapatite (a crystalline calcium phosphate) in any tendon of the body

disease