Journal of Chest Surgery

The Korean Society for Thoracic and Cardiovascular Surgery (대한심장혈관흉부외과학회)
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Surgical Treatment and Assessment of Prognostic Factors of Thymoma

흉선종의 수술적 치료 및 예후인자의 평가

  • 정경영 (연세대학교 의과대학 흉부외과학 교실) ;
  • 김길동 (연세대학교 의과대학 흉부외과학 교실)
  • Published : 1996.07.01
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Abstract

The relative importance of various factors influencing the prognosis and survival in the treatment of thymoma is still controversial. Sixty ave patients operated on for thymoma from Jan. 1981 to Dec. 1994 were evaluated, 28 patients (43.1 %) with myasthenia gravis and 37 patients (56.9%) without. Masaoka staging revealed stage I disease in 28 patie ts(4).1%) , stage ll in 1) patients(20.0%), stage 111 In 22 patients(33.8%), stage IVa in 1 patients(1.5%), and stage IVb in 1 patient(1.5%). There was no operative mortality. A complete resection was performed in 48 patients (73.8%) patients, associated in 10 patients (15.4%) with postoperative adjuvant treatment(radiotherapy 5; chemotherapy 1: radio- and chemotherapy 4). Thymomas were found to be predominantly of the epithelial type in 16 patients(24.6%), predominantly Iymphocytic type in 18 patients(27.7%), and mlxed in 22 patients (33.9%). The overall 5- and 10-year survival rates were 87% and 82%, respectively, Factors indicating a poor prognosis included local invasion, incomplete excision, thymic carcinoma, advanced staging and myasthenia gravis. The de- gree of tumor invasion turned out to be the main prognostic factor, and treatment should be planned ac- cordingly. The prognosis is best predicted by the stage of the tumor as determined intraoperatively and is poorer in patie ts with incomplete resection than in those with complete resection of the thynoma. No recurrence developed In patients with stage I disease.

1981년 1월부터 1994년 12월까지 흉선종으로 세브란스병원에서 수술한 65명의 환자를 대상으로 하였다. 환자중 28명(43.1%)이 중증근무력증을 동반하고 있었으며 마사오카 병기에 의하면 1기 28명(43. 11%), 2기 13명 (20.0%), 3기 22명 (33.8%), 4기a와 4기b가 각각 1명 (1.5%) 이었다. 수술사망은 없었고 완전절제가 48명 (73.8%)에서 가능했으며 수술 후 보조치료는 10명에서 시 행하여졌다. 병리학적분류로 24.6%가 상피세포형, 27.7%가 림파구형, )3.9%가 혼합형이 었다. 5년과 10년 생존율은 각각 87%, 82% 이었으며 흉선종의 수술 후 예후인자는 종양의 국소침윤여부, 종양의 완전절제여부, 흉선암, 병기, 중증 근무력증의 동반 여부였다. 1기 흉선종 환자에서는 재발이 없었다.

Keywords

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