Bacterial peritonitis secondary to Capnocytophaga canimorsus.

We present the case of a patient with liver cirrhosis and several previous episodes of ascitic decompensation, who was admitted for bacterial peritonitis secondary to Capnocytophaga canimorsus infection. The initial clinical presentation, diagnosis, treatment and resolution are described. This is the first case described of peritonitis caused by this agent in a patient with similar characteristics.