This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Stomach & Duodenum, Subject name: Surgery
Most common epithelial tumor of stomach: 
Select and explain. 
A. Carcinoid, B. GIST, C. Granulose cell tumor, D. Sarcoma
A: Carcinoid
Answer: A: Carcinoid 
Explanation: Hyper-plastic polyp which consists of elongated, branching, dilated glandular structures is the most common epithelial tumors in the stomach (75-90% of all gastric polyps). Carcinoid is the second most common epithelial tumor of the stomach and accounts for 11-41% of all gastrointestinal carcinoids. GIST is the most common non epithelial tumour of digestive tract.stomach is the most common site