Extraperitoneal bladder rupture

Case contributed by Dr Michael P Hartung

Presentation

Motor vehicle collision. Haematuria.

Patient Data

Gender: Male
CT

Day 1

Small splenic lacerations. 

Extensive left pelvic fractures: displaced communited sacrum, anterior subluxed pubic body, inferior pubic ramus, buckling of superior pubic ramus. 

Large amount of extraperitoneal blood products in pelvis, left retroperitoneum, and along the course of left ureter. Right ureter and pelvis are minimally dilated. 

Bladder suboptimally evaluated. 

Left flank subcutaneous hematoma. 

Delays: Persistent right nephrogram with minimal contrast in the calyces. Left kidney has expected excretion of contrast with enhancement than the right. Blood products tracking up from the pelvis surround the left ureter but do not result in obstruction. 

CT

Day 2

Cystogram shows two small areas of extraperitoneal bladder leakage: anterior left upper and anterior right lower. 

Few subcutaneous hematomas. Anasarca. Scrotal edema. 

Case Discussion

Typical findings of extraperitoneal bladder rupture following severe pelvic trauma. This case highlights the importance of performing a proper cystogram following trauma, as the bladder was suboptimally evaluated on the original delayed images.  I would imagine that even later delays with more bladder volume may not have confidently shown the small areas of leakage anteriorly. The blood tracking along the left ureter was likely related to pelvic fractures rather than injury of the left ureter.

The pattern of asymmetry of renal enhancement and excretion of contrast on the delayed images is unexpected. The right kidney appears to have a persistent nephrogram, typically seen in the setting of acute renal injury, but without a definite cause. The left kidney has expected excretion of contrast despite blood products surrounding the left ureter. It would be reasonable to recommend laboratory and/or functional imaging follow-up depending on clinical concern. 

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Case information

rID: 66879
Published: 17th Mar 2019
Last edited: 14th Apr 2019
System: Trauma
Inclusion in quiz mode: Included

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