<prompt> Best view for Tracheo-esophageal groove is:Left atrialRight atrialLeft ventricularRight ventricular  <response>: Left atrial 994-Bailey Love 24thTracheo-oesophageal fistulaA lateral chest radiograph shows a lucent proximal pouch that may displace the trachea anteriorly. If bowel gas is present there must be a fistula to the distal oesophagus. In case of doubt Air preferred or a small amount of contrast medium can be injected through the nasogastric tube. Gas in the stomach confirms that there is fistula between the trachea and distal oesophagus. 