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- Title
The "balloon on a string" appearance of the renal collecting system and ureter.
- Authors
Morgan, Matthew A.; El Jack, Amr K.
- Abstract
This sign may be seen with traditional radiographic evaluation of the kidney, such as with IV urography (excretory urography) or retrograde pyelography (Fig. 3 Volume-rendered reconstruction from a CT urogram in an adult female patient, performed to evaluate hydronephrosis and microhematuria, revealing the "balloon on a string" appearance of an unsuspected right-sided UPJO If the hydronephrosis is discovered in a pediatric patient, then the likelihood that the obstruction is due to a congenital UPJO is very high and diuretic renography may be performed to quantify the rate of outflow [[7]].
- Subjects
KIDNEY pelvis; URETERS; BALLOONS; TRANSITIONAL cell carcinoma; NITRIC-oxide synthases
- Publication
Abdominal Radiology, 2020, Vol 45, Issue 1, p257
- ISSN
2366-004X
- Publication type
Article
- DOI
10.1007/s00261-019-02152-7