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Causes of increased renal medullary echogenicity in Turkish children
1Department of Paediatric Nephrology, Istanbul University School of Medicine, Turkey.
Insights
This study investigated renal medullary echogenicity in 50 children, finding ultrasonography crucial for early diagnosis of conditions like distal renal tubular acidosis and vitamin D toxicity.
Area of Science:
- Pediatric Nephrology
- Diagnostic Imaging
- Medical Ultrasound
Background:
- Increased renal medullary echogenicity is a key ultrasound finding in pediatric renal disease.
- Early identification is vital for managing underlying conditions and preventing complications.
Purpose of the Study:
- To classify pediatric patients with increased renal medullary echogenicity based on underlying disorders.
- To evaluate the diagnostic utility of renal ultrasound in these cases.
Main Methods:
- Retrospective analysis of 50 children (1 month-16 years) with increased renal medullary echogenicity.
- Classification into four groups based on diagnosis and ultrasound patterns.
- Correlation with abdominal X-ray findings for medullary calcinosis.
Main Results:
- Distal renal tubular acidosis (34%) and vitamin D toxicity (28%) were the most common primary disorders.
- Distinct ultrasound patterns were associated with different conditions.
- Abdominal X-rays detected medullary calcinosis in only 24% of patients.
Conclusions:
- Ultrasonography is a valuable tool for diagnosing increased renal medullary echogenicity in children.
- It aids in the early detection of medullary nephrocalcinosis and related renal pathologies.
Abstract:
The primary disorders of 50 children with increased renal medullary echogenicity on renal ultrasound were studied; 28 girls and 22 boys aged from 1 month to 16 years were classified into four groups based on underlying disease and ultrasound findings. Group 1 was composed of 17 patients with distal renal tubular acidosis (34%); intense echoes throughout the pyramid were predominant. Group 2 consisted of 14 patients with vitamin D toxicity (28%) and an intense echogenic rim around the pyramids. Group 3 included 10 patients with different types of tubulopathies. A slight hyperechogenic rim around the sides and tip of the medullary pyramids was detected. Group 4 was made up of 9 patients with rare underlying conditions. Abdominal X-rays detected medullary calcinosis in only 12 (24%) of the total 50 patients. Ultrasonography appears to be an important tool in the early diagnosis of increased renal medullary echogenicity and medullary nephrocalcinosis.