Pseudogout

Calcium pyrophosphate deposition (CPPD)also known as “pseudogout” is a type of arthritis. In CPPD, calcium pyrophosphate (CPP) crystals form in the blood and settle in joint cartilage. People over 60 are more likely to get CPPD, although it may happen at an earlier age. Crystal deposits trigger an inflammatory attack in the joint. It is unknown why CPP crystals form. Excess iron or calcium, or low magnesium, and an abnormal thyroid gland may be contributing factors. CPP crystals may also be found in the joints of people with osteoarthritis or gout.

The information in the diseases and conditions fact sheets is for general education only. Please consult your rheumatologist for medical advice, diagnosis, and treatment of your unique medical condition. To learn more about pseudogout and up to date guidance, please visit American College of Rheumatology from the following link.