We report a rare case of infected walled-off pancreatic necrosis in a diabetic patient with chronic pancreatitis caused by Aeromonas veronii biovar sobria. Aeromonads are ubiquitous organisms found mainly in aquatic environments. Infection may occur after the ingestion of contaminated seafood/water, massive aquatic exposure during near-drowning events or by exposure of an abraded wound to the bacteria. The clinical manifestations of Aeromonas infections are mostly gastrointestinal infections, bacteraemia and skin and soft-tissue infections. Intraabdominal infections due to Aeromonas are uncommon with pancreatic infections being even rare.
Janda JM, Abbott SL. The genus Aeromonas: Taxonomy, pathogenicity, and infection. Clin Microbiol Rev 2010;23:35-73.
Procop GW, Church DL, Hall GS, Janda WM, Koneman EW, Schreckenberger PC, et al. Koneman's Color Atlas and Textbook of Diagnostic Microbiology. 6th ed. Philadelphia, PA: Lippincott Williams & Wilkins; 2006.
European Committee on Antimicrobial Susceptibility Testing. Breakpoint Tables for Interpretation of MICs and Zone Diameters. Ver. 12.0 1. 2022. Available from: http://www.eucast.org. [Last accessed on 2022 Jul 14].
Nolla-Salas J, Codina-Calero J, Vallés-Angulo S, Sitges-Serra A, Zapatero-Ferrándiz A, Climent MC, et al. Clinical significance and outcome of Aeromonas spp. Infections among 204 adult patients. Eur J Clin Microbiol Infect Dis 2017;36:1393-403.
Clark NM, Chenoweth CE. Aeromonas infection of the hepatobiliary system: Report of 15 cases and review of the literature. Clin Infect Dis 2003;37:506-13.
Lin WT, Su SY, Lai CC, Tsai TC, Gau SJ, Chao CM. Peritonitis caused by Aeromonas species at a hospital in southern Taiwan. Intern Med 2013;52:2517-21.
Mukhopadhyay C, Chawla K, Sharma Y, Bairy I. Emerging extra-intestinal infections with Aeromonas hydrophila in coastal region of southern Karnataka. J Postgrad Med 2008;54:199-202.
Rhee JY, Jung DS, Peck KR. Clinical and therapeutic implications of aeromonas bacteremia: 14 years nation-wide experiences in Korea. Infect Chemother 2016;48:274-84.
De Gascun CF, Rajan L, O'Neill E, Downey P, Smyth EG. Pancreatic abscess due to Aeromonas hydrophila. J Infect 2007;54:e59-60.
Isonhood JH, Drake M. Aeromonas species in foods. J Food Prot 2002;65:575-82.
Ko WC, Lee HC, Chuang YC, Liu CC, Wu JJ. Clinical features and therapeutic implications of 104 episodes of monomicrobial Aeromonas bacteraemia. J Infect 2000;40:267-73.
Llopis F, Grau I, Tubau F, Cisnal M, Pallares R. Epidemiological and clinical characteristics of bacteraemia caused by Aeromonas spp. as compared with Escherichia coli and Pseudomonas aeruginosa. Scand J Infect Dis 2004;36:335-41.
Tsai MS, Kuo CY, Wang MC, Wu HC, Chien CC, Liu JW. Clinical features and risk factors for mortality in Aeromonas bacteremic adults with hematologic malignancies. J Microbiol Immunol Infect 2006;39:150-4.
