[2] Gout is inflammation caused by the deposition of needle-shaped monosodium urate crystals in the joints.

The disease typically affects a single joint in earlier stages but can progress into polyarthritis over time.

[3] Pseudogout (also referred to as calcium pyrophosphate dihydrate crystal deposition disease) is another type of crystalline arthritis that presents very similarly to gout but is caused by the deposition of rhomboid-shaped calcium pyrophosphate dihydrate (CPPD) crystals.

Laboratory testing, specifically microscopic synovial fluid examination, is a more accurate method of diagnosing arthritis.

By performing a joint aspiration, physicians can check cell counts and look for signs of infection (bacteria/fungus) or crystal formation to determine which, if any, type of arthritis is present.

Minimizing pain, preventing disease progression, and improving joint function are the goals of arthritis treatment.