Uric Acid Crystals are found in acidic urine. They are soluble in sodium hydroxide.
These crystals can appear in normal urine but may also be seen in conditions such as gouty nephropathy, hyperuricemia, or kidney stones.
Diamond & Rosette
Uric acid crystals are typically diamond or lemon-shaped. Clumps of them may form a rosette. They are strongly birefringent.
Check out more images in the gallery below.
Barrel
Less commonly, the crystals may appear as barrels, star-like clusters, or other hexagonal shapes. They are strongly birefringent.
Check out more images in the gallery below.
Uric Acid Quiz
Diamond & Rosette Gallery
Barrell Gallery
Other Crystals
Hippuric Acid
Tyrosine
