The upper gastrointestinal tract in the immunosuppressed patient

There is a broad range of pathologies seen in the immunocompromised patient which relate primarily to their susceptibility to infection and complications arising from such infection, in particular tumorigenesis. A full spectrum of microorganisms may cause such infections ranging from viruses through bacteria to fungi, protozoa and even helminths. This review focuses on the infection-associated pathology including lymphoproliferative disorders seen in the upper GI tract of the immunocompromised patient. The clinical presentation, endoscopic features and histopathological findings of these pathologies are discussed.