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[Study of oval crystals in urine]
1Department of Urology, Jichi Medical School.
Hinyokika Kiyo. Acta Urologica Japonica
|October 1, 1989
Summary
Oval urinary crystals, predominantly found in patients with calcium oxalate crystalluria, were analyzed. Scanning electron microscopy and X-ray diffraction revealed these crystals are calcium oxalate monohydrate with a fibrous, biconcave structure.
Area of Science:
- Nephrology
- Mineralogy
- Biophysics
Background:
- Calcium oxalate crystalluria is a common condition associated with kidney stone formation.
- Understanding the morphology and composition of urinary crystals is crucial for diagnosing and managing kidney stone disease.
Observation:
- Urinary crystals from two patients with predominant oval forms were collected via centrifugation.
- Scanning electron microscopy (SEM) revealed a fibrous structure, biconcave surface, and prismatic appearance of the oval crystals.
- The side view of these oval crystals presented a prismatic morphology.
Findings:
- X-ray diffraction analysis confirmed that the observed oval urinary crystals are composed of calcium oxalate monohydrate.
- The structural characteristics observed via SEM correlate with the crystalline composition identified by X-ray diffraction.
Implications:
- This detailed morphological and compositional analysis enhances our understanding of calcium oxalate monohydrate crystal formation in urine.
- Such insights can contribute to developing targeted strategies for preventing or treating calcium oxalate kidney stones.
- Further research into crystal morphology may reveal novel diagnostic markers or therapeutic targets for crystalluria.