Surgery A coin foreign body is stuck in esophagus at 25cm from incisors. This is approximately situated at which of the following levels? A Left mainstem bronchus B Diaphragm C Cricopharyngeal constriction D Gastroesophageal junction 💡 Explanation A coin foreign body is stuck in esophagus at 25cm from incisors. This is approximately situated at which of the following levels? ✓ Correct Answer: A. Left mainstem bronchus