8585/1 Thymoma, type B3, NOS
SynonymsThymoma, epithelial, NOS
Thymoma, atypical, NOS
|ICD-O-3 topography code:||C37|
This type of thymoma displays morphologic characteristics of a well-differentiated carcinoma. The majority of cases occur in the anterior mediastinum as Masaoka stage II or stage III tumors. It is almost always invasive, recurs frequently, and metastasizes in approximately 20% of the cases.