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Use of In vivo Imaging to Monitor the Progression of Experimental Mouse Cytomegalovirus Infection in Neonates
Published on: July 6, 2013
Cytomegalovirus enteritis in common variable immunodeficiency
Elizabeth Stack1, Kay Washington, George R Avant
1Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232-5280, USA.
Insights
Cytomegalovirus (CMV) can cause severe gastrointestinal disease in individuals with common variable immunodeficiency (CVID). Early consideration of CMV is crucial for preventing mortality in CVID patients presenting with severe diarrhea.
Area of Science:
- Gastroenterology
- Immunology
- Infectious Diseases
Background:
- Common variable immunodeficiency (CVID) is a primary immunodeficiency characterized by impaired antibody production.
- Patients with CVID are susceptible to opportunistic infections, including viral pathogens.
- Gastrointestinal symptoms like diarrhea are common but can have diverse etiologies in CVID.
Observation:
- A woman with undiagnosed CVID presented with severe diarrhea and dehydration.
- Endoscopic biopsies showed atrophic gastritis, villous atrophy, and colitis, with an absence of plasma cells.
- Cytomegalovirus (CMV) inclusions were identified in the small and large bowel mucosa.
Findings:
- The patient's condition rapidly worsened despite treatment with intravenous immunoglobulin and ganciclovir.
- The extensive gastrointestinal pathology was attributed to Cytomegalovirus infection.
- The case demonstrates a fatal outcome due to a delay in diagnosing CMV in a CVID patient.
Implications:
- Highlights the critical role of considering Cytomegalovirus in the differential diagnosis of severe gastrointestinal disease in CVID patients.
- Early diagnosis and treatment of CMV in immunocompromised individuals can potentially prevent severe morbidity and mortality.
- Emphasizes the need for heightened awareness among clinicians regarding opportunistic infections in primary immunodeficiencies.
Abstract:
A woman with previously undiagnosed common variable immunodeficiency presented with diarrhea and volume depletion. Biopsies from upper and lower endoscopy revealed atrophic gastritis, villous atrophy, and an inflammatory bowel disease-like chronic colitis, with absence of plasma cells in all sites. Cytomegalovirus inclusions were demonstrated in the colon and small bowel mucosa. Despite therapy with intravenous immunoglobulin and ganciclovir, the patient deteriorated rapidly and subsequently died. This case report highlights the potential for cytomegalovirus to cause extensive disease in patients with common variable immunodeficiency and, thus, the importance of considering it in the initial differential diagnosis so that further morbidity and mortality might be prevented.
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