Pantoea species, members of the Enterobacteriaceae family are facultative anaerobic Gram-negative bacilli that can be isolated from plants and soil. Pantoea agglomerans can lead to localized infections in healty people with normal immune systems and to systemic infections in newborns and immunocompromised patients. Nosocomial infections caused by these opportunistic-pathogenbacteria are; septi arthritis, pneumonia, sepsis, peritonitis, urinary system infections, surgical infections, and catheter-associated infections. This bacteria, since it has a good ability to grow at 4°C, can be transmitted by contaminated intravenous solutions and stored blood products. Pantoea spp. can be found in cotton swabs and the intra-arterial devices. In this study, a catheter related sepsis caused by P. agglomerans was presented. 54-year-old male patient with a diagnosis of gastric cancer at November 2013 and receiving the last chemotherapy at March 2014; was hospitalized in the internal medicine service at our Istanbul University, Hospital of the Cerrahpasa Tip Faculty and was followed-up by total parenteral nutrition (TPN) due to the lack of gastrointestinal passage. After stabilization of his general conditions he was discharged in April 2014. Patient whose feeding continued for two weeks at home with TPN, applied to our hospital emergency department at May 2014 with the fever of 39.9°C and chills. He was admitted to hospital in the internal medicine service initiating piperacillin-tazobactam with preliminary diagnosis of catheter- associated sepsis. Because of the Gram-negative bacilli reproduction from blood cultures taken from the CVP catheter, the catheter was removed and a new catheter was inserted to provide nutrition for patient with TPN. P. agglomeran was isolated from the patient's blood and catheter culture. The identification of bacteria was done by conventional microbiological techniques and Phoenix automated identification system. Antibiotic susceptibility evoluated by using Kirby-Bauer disk diffusion test according to the Clinical and Laboratory Standarts Institute (CLSI) criteria. The microorganism was sensitive to piperacillin-tazobactam, so, patient's therapy was not changed. After treatment, when the general condition of the patient healed, he was discharged by ending antibiotics on the sixteenth day. This case report, is intended to call attention to the risk of the growth of catheter-associated sepsis and antibioterapi are lated to P. agglomerans which is rarely seen on immunocompromised patients.