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| ===Ultrasonography=== | | ===Ultrasonography=== |
− | Renal accumulation of calcium oxalate crystals results in hyperechogenicity upon ultrasound examination <ref name=''Ettinger'' />. | + | Renal accumulation of calcium oxalate crystals results in hyperechogenicity upon ultrasound examination <ref name="Ettinger" />. |
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| ===Biopsy=== | | ===Biopsy=== |
− | Needle or surgical wedge [[Renal Biopsy|biopsy of kidney]]<ref name=''Ettinger''/>. | + | Needle or surgical wedge [[Renal Biopsy|biopsy of kidney]]<ref name="Ettinger"/>. |
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| ===Pathogenesis=== | | ===Pathogenesis=== |