Causes of increased renal medullary echogenicity in Turkish children.
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.
Nayir
A
A
Department of Paediatric Nephrology, Istanbul University School of Medicine, Turkey.
Kadioğlu
A
A
Sirin
A
A
Emre
S
S
Tonguç
E
E
Bilge
I
I
D000141:Acidosis, Renal Tubular / Q000000981:diagnostic imaging; D000293:Adolescent; D002118:Calcium / Q000652:urine; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007669:Kidney Calculi / Q000000981:diagnostic imaging; D007674:Kidney Diseases / Q000000981:diagnostic imaging* / Q000209:etiology; D007679:Kidney Medulla / Q000000981:diagnostic imaging*; D007684:Kidney Tubules / Q000000981:diagnostic imaging; D008297:Male; D009397:Nephrocalcinosis / Q000000981:diagnostic imaging*; D011859:Radiography; D014421:Turkey; D014463:Ultrasonography; D014807:Vitamin D / Q000009:adverse effects
D014807:Vitamin D; D002118:Calcium