Gout is caused by crystals of which substance?

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Prepare for the CMS II Rheumatology E1 Exam with our comprehensive quiz. Study using flashcards and multiple-choice questions, each with hints and explanations. Get ready for success!

Multiple Choice

Gout is caused by crystals of which substance?

Explanation:
Gout occurs when uric acid builds up and deposits as monosodium urate crystals in joints and soft tissues. These crystals are needle-shaped and appear negatively birefringent under polarized light, a hallmark that helps distinguish gout from other crystal-induced arthropathies. This crystal-driven inflammation explains the sudden, painful joint swelling typical of gout, often hitting the big toe. The other crystals are associated with different conditions: calcium pyrophosphate crystals cause pseudogout, hydroxyapatite crystals with calcific tendinopathy, and cholesterol crystals relate to other inflammatory processes rather than gout.

Gout occurs when uric acid builds up and deposits as monosodium urate crystals in joints and soft tissues. These crystals are needle-shaped and appear negatively birefringent under polarized light, a hallmark that helps distinguish gout from other crystal-induced arthropathies. This crystal-driven inflammation explains the sudden, painful joint swelling typical of gout, often hitting the big toe. The other crystals are associated with different conditions: calcium pyrophosphate crystals cause pseudogout, hydroxyapatite crystals with calcific tendinopathy, and cholesterol crystals relate to other inflammatory processes rather than gout.

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