A Rare Case of Cytomegalovirus in the Gut in an Immunocompetent Host With Ischemic Colitis.

Cytomegalovirus (CMV) infections are typically seen in individuals with immunosuppressive conditions such as malignancies, HIV/AIDS, and organ transplantation, and in patients on chemotherapy or steroids. Recurrent disease can occur if the virus reactivates due to disruption of immunity due to factors such as older age or immunosuppressive drugs. CMV is common, with a seroprevalence (CMV IgG-positive) of 40-100 % in adults, increasing with age. It has been reported that inflammatory bowel disease in remission can be exacerbated by CMV colitis or complicate steroids refractory colitis flare. For this reason, steroids should be cautiously started if clinical suspicion is high for CMV. We report a unique case of CMV colitis associated with severe ischemic colitis in an immunocompetent patient, with an excellent response to management with antiviral therapy.