Indian Journal of Pathology and Microbiology
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Year : 2015  |  Volume : 58  |  Issue : 1  |  Page : 80-82

Cytomegalovirus colitis masquerading as rectal malignancy in an immunocompetent patient

1 Department of Pathology, Bahrain Specialist Hospital, Juffair, Manama, Bahrain
2 Department of Medical Gastroenterology, Bahrain Specialist Hospital, Juffair, Manama, Bahrain

Correspondence Address:
Dr. Sunitha Jacob
Department of Pathology, Bahrain Specialist Hospital, Juffair, Manama
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0377-4929.151195

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Gastrointestinal tract (GIT) involvement by cytomegalovirus (CMV) infection is well-recognized in immunosuppressed patients but is uncommon in immunocompetent hosts. The colon and esophagus are the most frequently affected sites with punched out ulcers being the characteristic mucosal lesion. CMV-induced pseudotumor is an exceptionally rare presentation, especially in immunocompetent hosts. A 76-year-old immunocompetent female presented with abdominal pain and constipation. Colonoscopy revealed an ulcerated polypoidal tumor-like mass in the anorectal region. Biopsy of the lesion showed large basophilic intranuclear inclusions which were positive for CMV on immunohistochemical staining. The patient responded to 2 weeks of antiviral therapy with complete resolution of the mass. Although rare, pseudotumors associated with CMV infection should be considered in the differential diagnosis of tumorous lesions of the GIT.

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