Most commonly foreign body lodges in which pa of esophagus
There are physiological constrictions in esophagus at 4 levels as mentioned below, foreign body M/C lodges at first constriction. Constriction of oesophagus Veebral Level Distance From Upper Incisors Cricopharyngeal C6 6" Arch of aoa T4 9" Crossing of left bronchus T6 11" Esophageal opening in diaphragm T10 15"
At the level of cricopharyngeus
Where it crosses the aoic arch
Where it is crossed by left bronchus
Where it pierces the diaphragm
Umblicial cord and diaphragm