Which statement best describes gout deposition in joints?

• A. Osteoarthritis
• B. Scoliosis
• C. Gout
• D. Osteoporosis

Answer: (C)

Gout deposition in joints occurs when monosodium urate crystals accumulate in the joint space and surrounding soft tissues, triggering a strong inflammatory reaction. When uric acid levels are high, these crystals precipitate—often in cooler, peripheral joints—and are needle-shaped with negative birefringence under polarized light. Phagocytosis of the crystals by neutrophils activates the inflammasome and drives IL-1β–mediated inflammation, producing the abrupt, very painful swelling seen in acute gout. Over time, crystals can form tophi in soft tissues. This pattern of crystal-driven inflammatory arthritis is distinct from osteoarthritis (degenerative cartilage wear), scoliosis (spinal curvature), and osteoporosis (bone density loss).