| Line 25: |
Line 25: |
| | | | |
| | ===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" />. |
| | | | |
| | ===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"/>. |
| | | | |
| | ===Pathogenesis=== | | ===Pathogenesis=== |