Abstract
Liver cirrhosis results from progressive hepatic fibrosis and is generally considered irreversible. One of the many consequences of cirrhosis is spontaneous bacterial peritonitis. This typically presents in patients with decompensated cirrhosis due to bacterial translocation, most commonly from the intestinal bacterial flora seeding into the ascitic fluid. We present a rare case of spontaneous bacterial peritonitis caused by Achromobacter xylosidans. This bacterium is mostly associated with nosocomial infections, and due to its multidrug-resistant nature, treatment options are often limited. This case highlights a rare cause of spontaneous bacterial peritonitis to consider in the setting of recent hospitalization, and the importance of recognizing spontaneous bacterial peritonitis versus secondary bacterial peritonitis.