Presentation
Right flank pain. Full ward test (urine) revealed 1+ blood and 3+ leuks. Normal blood white cell count.
Patient Data
Right-sided hydronephrosis and a small amount of perinephric free fluid. 3 mm echogenic focus at the right vesicoureteric junction which demonstrated 'twinkle' artifact. No ureteric jet visualized.
Unremarkable left collecting system and kidney.
Case Discussion
Ultrasound appearance and clinical presentation consistent with an obstructive right vesicoureteric junction calculus.
While most patients with acute renal colic will be investigated with a CT the diagnosis can, in many cases, be adequately confirmed on ultrasound.