[Emphysematous cystitis: an uncommon cause of abdominal pain].

An 82-year-old woman with a previous medical history of hypertension and hypothyroidism was admitted to the emergency department for abdominal pain, diarrhea, confusion and changes in her overall condition over several days. At the emergency department, the patient was febrile and her blood tests showed elevated C-reactive protein without leukocytosis (8.9 × 10^9/L). In the current context, a nasopharyngeal swab for SARS was performed and was negative. With these results, the initial suspicion was that of an infectious condition of gastrointestinal origin. The urine sample was oul-smelling with presence of leukocytes and nitrites and was sent out for culture. In the setting of probable urinary tract infection, empirical antibiotic treatment was started with a third generation cephalosporin. It was decided to perform a total body scanner in order to evaluate the presence of other infectious foci. The study described the presence of emphysematous cystitis, a rare pathology in a patient without any of the classic risk factors for this entity. Urine and blood cultures were positive for Escherichia coli sensitive to the empiric antibiotic which was continued to complete 7 days. The clinical course was favorable.