near the tip of the thumb and right below the fingernail. Pseudogout is an inflammatory arthritis that forms when calcium pyrophosphate crystals deposit in the joints and soft tissues. It can ...

People with Kelley-Seegmiller syndrome or Lesch-Nyhan syndrome may lack an enzyme that helps control uric acid levels. Pseudogout is a type of arthritis that causes pain, redness, heat, and swelling ...