Cholecystitis Caused by Anaerobiospirillum succiniciproducensBorrás, María PhD*; Domínguez, Victoria PhD†; Gil-Tomás, Jesús J. PhD*; Martínez-Macías, Olalla PhD*; Colomina, Javier PhD*Infectious Diseases in Clinical Practice: July 2014 - Volume 22 - Issue 4 - p e69–e71 doi: 10.1097/IPC.0b013e3182a1ee77 Case Reports Abstract Author Information We describe the case of a 58-year-old man experiencing severe abdominal pain around the epigastric area that presents a positive Murphy sign. A spiral-shaped, gram-negative anaerobic bacterium was isolated from the bile. Attempts to identify the bacteria by an automated system based on biochemical testing were unsuccessful. Anaerobiospirillum succiniciproducens was identified by 16S ribosomal RNA gene amplification by polymerase chain reaction and subsequent analysis. The patient responded to a combination therapy based on amoxicillin/clavulanic and ciprofloxacin. From the *University Hospital of La Ribera, Alzira, Valencia; and †Castellon’s General Hospital, Castellón, Spain. Correspondence to: Javier Colomina, PhD, Carretera de Corbera, Km 1, 46600 Alzira, Valencia, Spain. E-mail: firstname.lastname@example.org. The authors have no funding or conflicts of interest to disclose. © 2014 by Lippincott Williams & Wilkins.