Abstract
Emphysematous cystitis is a rare form of lower urinary tract infection. We report a case of emphysematous cystitis with malnutrition after surgery for gastric cancer. The patient was a 76-year-old woman who presented with complaints of nausea and vomiting. Abdominal computed tomography (CT) showed a gaseous shadow in the bladder wall. The urine culture grew Escherichia coli. These findings were compatible with a diagnosis of emphysematous cystitis. Urethral catheterization and administration of antibiotics improved the clinical course. The gaseous shadow in the bladder wall resolved based on follow-up CT scan.