Fig. 1
From: Malignant peripheral nerve sheath tumour of the oesophagus: a case report
a Upper gastrointestinal endoscopy revealed a type 1 oesophageal tumour centred on the posterior wall 26–35 cm from the incisors. The surface was ulcerated, and the tumour was exposed. b Upper gastrointestinal imaging revealed a semicircular raised lesion in the lower oesophagus