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Shojaei E, Walsh JC, Sangle N, Yan B, Silverman MS, Hosseini-Moghaddam SM. Gastrointestinal Histoplasmosis Mimicking Crohn's Disease. Open Forum Infect Dis 2021; 8:ofab249. [PMID: 34262987 PMCID: PMC8274358 DOI: 10.1093/ofid/ofab249] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 05/13/2021] [Indexed: 11/13/2022] Open
Abstract
Disseminated histoplasmosis is a life-threatening disease usually seen in immunocompromised patients living in endemic areas. We present an apparently immunocompetent patient with gastrointestinal histoplasmosis who was initially diagnosed with biopsy-proven Crohn's disease. Following discontinuation of anti-inflammatory drugs and institution of antifungal therapy, his gastrointestinal illness completely improved. Specific fungal staining should be routinely included in histopathologic assessment of tissue specimens diagnosed as Crohn's disease.
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Affiliation(s)
- Esfandiar Shojaei
- Division of Infectious Diseases, Department of Medicine, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
| | - Joanna C Walsh
- Department of Pathology and Laboratory Medicine, London Health Sciences Centre, Western University, London, Ontario, Canada
| | - Nikhil Sangle
- Department of Pathology and Laboratory Medicine, London Health Sciences Centre, Western University, London, Ontario, Canada
| | - Brian Yan
- Division of Gastroenterology, Department of Medicine, Schulich School of Medicine & Dentistry, London Health Sciences Centre, Western University, London, Ontario, Canada
| | - Michael S Silverman
- Division of Infectious Diseases, Department of Medicine, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
- Department of Epidemiology and Biostatistics, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
| | - Seyed M Hosseini-Moghaddam
- Division of Infectious Diseases, Department of Medicine, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
- Division of Infectious Diseases, Department of Medicine, University Health Network, University of Toronto, Toronto, Ontario, Canada
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