<prompt> A 40-year-old immunocompromised patient presented with complaints of dysphagia. Upper GI endoscopy showed multiple serpiginous ulcers in the distal esophagus. Biopsy from the esophagus showed the following. What is the diagnosis?CandidaCMVHerpesEosinophilic esophagitis  <response>: Ans. b. CMVRef: Robbins and Cotran Pathologic Basis of Disease 9th Ed; Page No-359VirusRoute of transmissionClinical significance NotesCMVCongenital transfusion, sexual contact, saliva, urine, transplantMononucleosis ? Monospot inImmunocompetent patients; infection in immunocompromised, especially pneumoniain transplant patients; esophagitis; AIDS retinitis cytomegalovirus: hemorrhage, cotton-wool exudates, vision loss Congenital CMVInfected cells have characteristic Owl eye inclusionsLatent in mononuclear cellsExtra MileViral CytopathogenesisInclusion bodiesVirusIntracytoplasmic Negri bodiesRabiesIntracytoplasmic acidophilicGuarnieri PoxvirusesIntranuclear Owl eyeCytomegalovirus CMVIntranuclear CowdryHerpes simplex virusSubacute sclerosing panencephalitis measles virusSyncytia formationHerpes viruses Varicella-zosterParamyxoviruses measles, mumps, rubella and respiratory syncytial virus HIV 