Prognosis of Invasive Thymoma
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概要
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One hundred forty-two patients with surgically treated thymoma were studied on how the complete resection of the tumor influenced on the survival rate in terms of the clinical stages and histological cell types. The survival rates of stage I disease (45 patients) undergoing a complete resection were 100% for 5 and 10 years, and 85.7% for 15 years. Those of stage II disease (33 patients) undergoing a complete resection were 91.5% for 5 years, 84.4% for 10 years, 70.4% for 15 years, and in stage III disease (35 patients) they were 100% for 5 years, 94.7% for 10 and 15 years. Thus, there were no statistically significant differences in survival rates of patients with stage III disease undergoing a complete resection compared with patients with stage I and II diseases. On the other hand, survival rates of stage III disease (5 patients) undergoing a subtotal resection were 80% for 5 and 10 years, 0% for 15 years, and also, those of stage IV disease (13 patients) undergoing a subtotal resection were 62.3% for 5 and 10 years. There were no significant differences between survival rates of stage III and IV diseases undergoing a subtotal resection. Also, concerning the histological cell types, there were no significant differences of survival rates between patients undergoing a complete resection.<BR>In conclusion, even in invasive thymoma invading the surrounding tissues (stage III), if it is removed completely, the prognosis in the long term is comparable with non- or minimally invasive thymomas, irrespective of the histological cell types.
- 特定非営利活動法人 日本呼吸器外科学会の論文