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: Surgery
All of the following are contraindications for rigid esophagoscopy Except 
Select and explain. 
A. Trismus, B. Aoic aneurysm, C. Stricture, D. None
C: Stricture
Answer: C: Stricture 
Explanation: Regular oesophageal dilatation is done for stricture. Stricture is dilated endoscopically using guidewires. Dilators are solid type with gradual increase in diameters. Dilatation should be done up to minimum 16mm diameter. Reference: SRB's Manual of Surgery, 6th Edittion, page no= 792