Emphysematous cystitis

Case contributed by Allison L Zwingenberger
Diagnosis certain

Presentation

Presents with history of diabetes and urinary tract infections.

Patient Data

Age: 13 years
Gender: Spayed female
Category: Domestic dog
Organism: Alaskan malamute

Abdomen

x-ray

The wall of the urinary bladder contains small pockets of gas . There is additional gas in the center of the bladder lumen. There are no calculi, and no free gas or effusion is noted in the peritoneal cavity.

Emphysematous cystitis.

Urinary bladder

ultrasound

There is free gas within the bladder causing reverberation artifact. The bladder wall is thickened and lobular. The gas within the wall is not clearly visible.

Case Discussion

Emphysematous cystitis is recognized on radiographs and ultrasound. It is caused by bacteria, usually in the presence of glucose in the urine (diabetes, hyperadrenocorticism). The bacteria (usually Clostridium spp) in the lumen and in the wall cause gas formation. The cystitis may be clinical or asymptomatic. The cystitis is treated with antibiotics.

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