Additional pediatric resources: GeneralPediatrics.com | PediatricEducation.org | SearchingPediatrics.com
Michael P. D'Alessandro, M.D.
Peer Review Status: Internally Peer Reviewed
Etiology/Pathophysiology:
Twenty-two percent are due to congenital ureteropelvic junction
obstruction, the rest are due to posterior urethral valves, ectopic
ureteroceles, prune belly syndrome, and ureterovesical junction
obstruction.
Pathology:
Not applicable
Imaging Findings:
On ultrasound multiple anechoic cysts which communicate with a large
central cyst are seen.
Renal scintigraphy is a very good way to distinguish congenital hydronephrosis from multicystic dysplastic kidney as in congenital hydronephrosis there is a rim of functioning tissue, whereas in multicystic dysplastic kidney there is no functioning tissue.
DDX:
References:
See References Chapter.
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