Prognosis

Prognosis depends on stage, WHO histology, and whether resection was complete. Additional prognostic factors include tumour size and invasion of great vessels.[8][12][13][73]

Clinically encapsulated thymoma

Most series of resected thymomas have a 10-year thymoma-related survival rate of 70% to 90%.[8][12][13][73] The stage and completeness of resection are the most important prognostic factors. In the largest surgical series using the Masaoka-Koga staging system, 5-year survival rates were: 100% for stage I, 98% for stage II, 88% for stage III, 70% for stage IVA, and 52% for stage IVB.[13]

Other thymic neoplasms

Poorly differentiated thymic carcinomas generally have a poor prognosis. Overall cure rates for neuro-endocrine tumours are low.

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