stage III thymomaListen to pronunciation(... thy-MOH-muh)Cancer has spread to nearby organs in the chest, including the lung, the sac around the heart, or large blood vessels that carry blood to the heart.More InformationThymoma and Thymic Carcinoma TreatmentSearch NCI's Dictionary of Cancer TermsStarts withContainsBrowse:ABCDEFGHIJKLMNOPQRSTUVWXYZ#