Paediatric ImagingBladder rupture
can be seen in the neonate secondary to urethral
obstruction, or rarely, an asphyxiated bladder (
Fig.1) and is a cause of
urinary ascites. More commonly the bladder ruptures following direct abdominopelvic
trauma. Intraperitoneal rupture tends to occur if the bladder is full and presents with peritonism. On
CT imaging contrast extravasates into the peritoneal cavity. Ascites is evident. With extraperitoneal rupture there is no ascites, and contrast may be seen in the soft tissue.
Extraperitoneal rupture should be considered if there are pelvic fractures and difficulty in micturition or haematuria. Retrograde urethrography and micturating cystography may be required to confirm rupture.
HC
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Image from micturating cystourethrography showing perforation of the roof of the bladder with extravasation of contrast into the paracolic space on the left. This child had an asphyxiated bladder.
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Bladder rupture, Fig.1 | |