Survival after extended thymectomy for thymoma

Abstract

Type B3 classified by the WHO histological classification system is a poor prognostic factor for survival of thymoma after extended thymectomy. Association with MG is possibly an indicator of poor survival. Age is an independent prognostic factor, suggesting favourable prognosis of thymoma after surgical treatment. Considering thymoma is a rare tumour, it would be necessary to build a multi-institutional database as soon as possible.