Results: Our study recorded the following results: 45% male, 55% female; The average age was 37, 42 ± 14, 15; The majority of patients hospitalized in over 8 days (55%); The average surgical time was about 100 minutes; Common diseases include: teratomas (35%), Schwann cell tumors (20%); thymic tumors (10%); Benign cysts (10%); lymphoblastic (5%); Postoperative complications: pleural effusion (5%), pneumothorax (5%) - all were treated effectively with medical methods.