A very rare genetic disorder characterized by progressive osteoarthritis. Joint damage is caused by deposits of crystals containing calcium.
* Joint pain * Osteoarthritis * Stiff joints
Although the exact cause of primary gout remains unknown, it appears to be linked to a genetic defect in purine metabolism, which causes elevated blood levels of uric acid (hyperuricemia) due to overproduction of uric acid, retention of uric acid, or both.
Radiography has a large role to play in the diagnosis of chondrocalcinosis with radiographs, CT scans, MRIs, ultrasound and nuclear medicine all having a part.  CT scans and MRIs show calcific masses (usually within the ligamentum flavum or joint capsule) however radiography is more successful.