A 9-year-old boy was admitted for recurrent right abdominal pain for 5 years (previously managed as a digestive system disorder). He had no fever or gross hematuria but occasional dysuria, frequency, and dribbling.
Urinalysis revealed pyuria and microscopic hematuria, with negative midstream urine culture. Computed tomography images (Figure 1; Supplementary Figure S1) demonstrated a high-density calculus in the lower right ureter, accompanied by proximal ureteral dilatation, cystic pelviectasis, distal ureteral stenosis, and thickened, rough walls.
Kidney International published a clinical update in Research Highlights on 13 Mar 2026.
The item focuses on Giant ureteral calculus from congenital distal ureteral stenosis.
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