Fig. 1

Clinical findings in a newborn infant girl with esophageal duplication cyst. a On physical examination, there was anterior neck swelling on the right. b Ultrasonography showed a simple cyst measuring 40 × 24 × 33 mm in the right neck. c T2-weighted enhanced magnetic resonance imaging revealed a simple cyst (asterisk) that displaced the sternocleidomastoid muscle anteriorly, the carotid sheath (arrow) to the right, and the larynx and trachea (arrow head) to the left. d Bronchoscopy showed compressive deformation of the trachea from the subglottis to the carina