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  • Title: Clinical, imaging, endoscopic findings, and management of patients with CMV colitis: a single-institute experience.
    Author: Shieh AC, Guler E, Tirumani SH, Dumot J, Ramaiya NH.
    Journal: Emerg Radiol; 2020 Jun; 27(3):277-284. PubMed ID: 31955314.
    Abstract:
    PURPOSE: To evaluate clinical, laboratory, imaging, endoscopic findings, treatment, and outcomes of patients with CMV colitis. METHODS: The electronic medical records of 652 patients who had an impression of colitis of unspecified etiology via endoscopic findings between 2011 and 2019 were retrospectively reviewed. There were 9 patients with biopsy-proven CMV colitis and associated CT imaging performed within 1 month of diagnosis. Demographic data, past medical history, symptoms, laboratory, imaging, endoscopic and biopsy findings, colitis-related adverse events, treatment, and management were recorded. RESULTS: Within the group of 9 patients (2 men; median age, 60 years), all were in an immunosuppressed state (8/9 on immunosuppressive medication regimen and 1/9 with untreated AIDS). Presenting symptoms of CMV colitis included bloody stools (9/9), abdominal pain (7/9), and diarrhea (7/9). The most common imaging findings were pericolonic stranding (9/9) and bowel wall thickening (9/9). Endoscopic evaluation noted inflammation (9/9), ulceration (9/9), and erythema (8/9) as the most prevalent impressions. As determined by both imaging and endoscopy, the sigmoid colon was most commonly affected. Patients were treated with valganciclovir alone (3/9) or ganciclovir followed by valganciclovir (6/9). Outcomes included perforated colon (1/9), persistent colitis (3/9), discharge to hospice (1/9), and resolution (4/9). CONCLUSIONS: CMV colitis is generally associated with an immunosuppressed state. Imaging and endoscopic findings can mimic inflammatory, ischemic, and infectious colitides. However, CMV colitis should be included in the differential diagnosis in immunocompromised adults who present to emergency department with bloody stools, acute abdominal pain or diarrhea, and have bowel wall thickening and pericolonic stranding on imaging.
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