This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: ENT
The commonest benign intramural tumor of the esophagus is - 
Select and explain. 
A. Fibroma, B. Leiomyoma, C. Angioma, D. Lipoma
B: Leiomyoma
Answer: B: Leiomyoma 
Explanation: Leiomyoma is the most common benign neoplasma of esophagus and accounts for two-third of all the benign neoplasms.
They usually arise as intramural growth, most commonly along the distal two-third of the esophagus.