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
[{'content': 'Most common benign tumor of esophagus is? \nSelect and explain. \nA. Lipoma, B. Fibroma, C. Leiomyoma, D. Lymphangioma', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. is \'c\' i.e. Leiomyoma "Tumors of smooth muscle origin, leiomyomas are most common; fibromas, lipomas, hemangiomas, neurofibromas and lymphangiomas also occur Robbin and Cotran pathological basis of disease, professional edition.Also remember* Leiomyoma is the most common benign tumor of Upper gi tract. The commonest site of leiomyoma in git is stomach (61.5%) followed by jejunum (19%).', 'role': 'assistant'}]