This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T., Subject name: Pathology
45-year-old male complained of dysphagia. On investigation, he was HIV positive. He underwent endoscopy and biopsy. Endoscopy findings and histological findings are suggestive of? 
Select and explain. 
A. Herpes, B. CMV, C. Candida, D. Pseudomonas
B: CMV
Answer: B: CMV 
Explanation: Ans. (b) CMV esophagitisEndoscopy showed shallow ulcera at lower end of esophagusHistopathology shows large eosinophilic intranuclear inclusion and multiple small cytoplasmic inclusions