The right ureter appears moderately dilated till its lower third (hydroureter) with the ureteral calculus lodged at the junction between the middle and lower thirds. This patient was an elderly female with abdominal obesity. This made ultrasound imaging of the ureteric calculus extremely difficult. However, probe compression over the path of the right ureter helped displace bowel loops and brought the entire ureter into view.
The right kidney shows evidence of moderate hydronephrosis,- the result of long standing ureteric obstruction. (See ultrasound image below):
This patient also had a couple of right renal calculi (only one is visualized in this ultrasound image- below).
See:
http://www.ultrasound-images.com/ureteric-calculi.htm for more images and coverage on this topic.
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