抄録
We underwent the open surgery in 5 patients and laparoscopic surgery (retroperitoneal approach) in 3 patients using a microwave tissue coagulator. There were no cases that shifted to the open surgery from laparoscopic surgery. However, laparoscopic approach to the renal tumor in the upper pole of the kidney should be careful for radical resection, because of the difficulty of the approach. Retroperitoneal approach should also be more careful for the ventilation of the air in the retroperitoneal cavity not to be too hot. A flexible tip of the microwave coagulator was easy to be damaged by the sheath of the trocer in a small retroperitoneal space.
