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Urology. 1990 Mar;35(3):242-6.

Cystourethrograms characteristic of bladder instability in children.

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  • 1Department of Urology, Nagoya University School of Medicine, Japan.


Cystourethrograms characteristic of bladder instability are illustrated. A repeated increase of intravesical pressure causes functional and morphologic deformities of vesicourethral configuration: ballooning of the proximal urethra, ureteric reflux, and trabeculated bladder during the storage phase; and dilatation of bladder neck and proximal urethra, and a pearl string-like configuration of urethra during the voiding phase. The clinical significance of these observations is presented.

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