Type 1 Primary Hyperoxaluria in Pediatric Patients: Renal Sonographic Patterns
Ousséini Diallo1,
Françoise Janssens2,
Michelle Hall2 and
E. Fred Avni1,3
1 Department of Pediatric Imaging, Queen Fabiola Children's Hospital, Av. J.J.
Crocq, Brussels 1020, Belgium.
2 Department of Pediatric Nephrology, Queen Fabiola Children's Hospital,
Brussels 1020, Belgium.
3 Department of Medical Imaging, Erasme Hospital, University Clinics of
Brussels, 808 Route de Lennik, Brussels 1070, Belgium.

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Fig. 1. 10-year-old girl with medullary nephrocalcinosis. Sagittal
sonogram of left kidney shows hyperechogenicity of all pyramids.
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Fig. 2. 12-year-old girl with medullary nephrocalcinosis. Sagittal
sonogram of right kidney shows that not all pyramids are hyperechoic.
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Fig. 3. 2-week-old boy with cortical nephrocalcinosis. Sagittal
sonogram of right kidney shows that proximal superficial cortex appears
hyperechoic compared with deeper cortex. Note lack of corticomedullary
differentiation.
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Fig. 4. 2-year-old boy with cortical nephrocalcinosis. Sagittal
sonogram shows right kidney. Note striking hyperechogenicity of cortex
adjacent to liver and acoustic shadowing in deeper areas.
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Fig. 5. 2-week-old boy with type I primary hyperoxaluria with
cortical nephrocalcinosis. Unenhanced CT scan shows spontaneous hyperdensity
of cortex.
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Copyright © 2004 by the American Roentgen Ray Society.