RESUMEN
Novel pathogens keep evolving from time to time. In this article, we describe a rare case of the bacterium Sphingobium lactosutens causing peritoneal dialysis-related peritonitis in a patient who presented to our dialysis clinic with typical features of abdominal pain and diffuse abdominal tenderness and was successfully treated with the intraperitoneal antibiotic therapy. There were only very few cases of infections caused by Sphingobium species before. Here, we discuss the infections caused by other Sphingobium species, probable sources of infection, clinical findings, and susceptibility patterns. We also aim to create awareness about this rare bacterial pathogen and emphasize the need for more research to successfully treat and prevent future infections.