These spiked rods are uric acid crystals photographed under polarized light. Increased uric acid blood levels and formation of uric acid crystals in the joints are associated with gout.
Review Date 5/2/2021
Updated by: Diane M. Horowitz, MD, Rheumatology and Internal Medicine, Northwell Health, Great Neck, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.