8580/3 Thymoma, malignant, NOS


ICD-O-3 topography code: C37
ICD10: C37

A thymoma that has an aggressive clinical course (capsular invasion, infiltration of the surrounding tissues) and can metastasize. Although any morphologic subtype of thymoma may eventually have a malignant clinical course, this term is most often associated with thymoma types B3 and C.