Toxic Megacolon Caused by Cytomegalovirus Colitis in a Multiply Injured Patient

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Abstract
Cytomegalovirus (CMV) colitis is a rare event that has been described mainly in immunocompromised patients with immunosuppressive medication or HIV infection. An association with severe trauma has not been described previously. We report a formerly healthy, multiply injured 75-year-old male who subsequently developed what appeared to be pseudomembranous colitis. By the time the diagnosis of toxic megacolon on the basis of CMV colitis was established, he had succumbed to multiple organ failure. Whenever pseudomembranous colitis is clinically suspected but not confirmed in a critically ill formerly healthy patient, CMV colitis should be excluded. Once the diagnosis is confirmed, generous resection of all affected colon is mandatory in view of the limited benefit of antiviral therapy in CMV-induced toxic megacolon.