“…More than half the primary intrathoracic neural tumours reported have been discovered as chance radiographic findings in symp-SUMMARY tomless patients submitted to routine chest radiography ( Le Roux, 1960). our first patient the origin of the growth, i.e., the phrenic nerve, is very likely to have aided the development of hiatus hernia, by partially paralysing the left hemi-diaphragm and deforming the hiatus.…”