Figure 1
Endoscopic ultrasound of patients with oesophageal cancer with mediastinal invasion. (a) Oesophageal tumour (T4): the tumour (white arrow) is adherent to the left pulmonary vein (white cross) with loss of the intervening plane. (b) Oesophageal tumour (T4): the tumour (broken white arrow) has breached the pleura (white arrow) to invade the right lung.