Monarch Disease Ontology identifier MONDO_0006451 (thymic carcinoma) (TC) is a type of thymic epithelial neoplasm characterized by a high malignant potential. Also known as: carcinoma of thymus, malignant thymoma, thymic carcinoma (excluding well differentiated thymic carcinoma), thymic carcinoma excluding well differentiated thymic carcinoma, thymoma type C, thymoma, malignant, thymoma, malignant (morphologic abnormality), thymoma, type C.