COMAMONAS TESTOSTERONI BACTEREMIA IN A PATIENT WITH PERFORATED ACUTE APPENDICITIS SHORT COMMUNICATION MUSTAFA GUL 1 *, PINAR CIRAGIL 1 ,ERTAN BULBULOGLU 2 ,MURAT ARAL 1 , SUMEYRA ALKIS 1 and FIKRET EZBERCI 2 1 Department of Clinical Microbiology, 2 Department of General Surgery, Faculty of Medicine, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey (Received: 14 April 2006; accepted: 25 October 2006) Comamonas testosteroni is an uncommon isolate in the clinical laboratory as a human pathogen. C. testosteroni most commonly emerges in abdominal pathologies especially in perforated appendicitis. In Turkey we report first time a case of bacteremia due to this organism, in a 22-year-old man with perforated acute appendi- citis. The organism was shown to be susceptible to routine antibiotics so it was easily eliminated even after having caused a bacteremia. Keywords: Comamonas testosteroni, bacteremia, acute appendicitis Introduction The genus Comamonas includes the species Comamonas (formerly Pseu- domonas) acidovorans, Comamonas testosteroni (C. testosteroni) and Coma- monas terrigena [1]. All are motile by means of a polar tuft of up to six flagella, with the distinctive feature of having a long wavelength. Acid is not produced in OF glucose medium, thus these organisms are alkaline pseudomonads. C. acidovorans is the most common representant of the group isolated from such 1217-8950/$20.00 © 2007 Akadémiai Kiadó, Budapest Acta Microbiologica et Immunologica Hungarica, 54 (3), pp. 317–321 (2007) DOI: 10.1556/AMicr.54.2007.3.6 * Corresponding author: Mustafa Gul M.D., Assistant Professor, Department of Microbiology and Clinical Microbiology, Faculty of Medicine, Kahramanmaras Sutcu Imam University, Yorukselim mah. Hastane Cad. No. 32, 46050 Kahramanmaras, Turkey. Phone: +90 344 2212337 ext. 358; Fax: +90 344 2212371; GSM: +90 532 3745791; E-mail: mustafagultr@yahoo.com