Left ureteric calculus

Case contributed by Dr Andrew Dixon

Presentation

Presents with left loin pain to groin. Query renal calculus. Past history renal calculus.

Patient Data

Age: 60
Gender: Male
Modality: CT

Within the left distal ureter, just proximal to the vesicoureteric junction, there is a 6 x 5 x 5 mm calculus. This is associated with mild left hydroureter and left hydronephrosis, and mild left perinephric stranding. Three small nonobstructing calculi are seen within the left kidney, measuring 3 mm at the upper pole, 2 mm at the lower pole and 4 mm at the lower pole. No right-sided renal calculus identified. Two low density lesions in the liver, measuring 2.6 cm in segment 2/3 and 2.2 cm in segment 6/7, likely represent cysts. Diverticular disease of the sigmoid colon.  No dilated loops of small or large bowel.

Modality: Ultrasound

Mild left hydronephrosis. Near the left VUJ, there is a 6mm echogenic focus producing posterior shadowing consistent with a calculus. Only the right ureteric jet was visualised. 

Case Discussion

Typical CT and ultrasound appearance of ureteric colic. While non-contrast CT is typically more sensitive for visualising a ureteric stone than ultrasound, the latter test avoids the need for ionising radiation and can reliably demonstrate features of obstruction (hydronephrosis, absence of a ureteric jet on colour Doppler) even if the stone itself is not seen.  

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Case Information

rID: 35778
Case created: 22nd Apr 2015
Last edited: 23rd Jul 2016
System: Urogenital
Inclusion in quiz mode: Included

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