“…As the tumour is located in a narrow space and adjacent to important vessels and nerves, and its anatomy is complicated, thoracoscopy is difficult to perform and the complication ratio is high. In this group, half of the posterior mediastinal neurogenic tumours with diameter ≥6 cm were located at the cupula of the pleura region, and for 60% (3/5) cases of the conversion to thoracotomy and 42.9% (3/7) cases of surgical complication, the tumours were located at the apex of pleura, which indicated the difficulty and risk of thoracoscopic surgery in this region, and were consistent with the literature . In the earlier inexperienced period, we intended to strip the tumour together with its capsule, resulting in unclear visual field, significant haemorrhage and post‐operative nerve injury complication.…”