Lymphadenopathy Abnormal mediastinum morphology Mediastinal lymphadenopathy 2011-06-06T02:26:55Z Swelling of lymph nodes within the mediastinum, the central compartment of the thoracic cavities that contains the heart and the great vessels, the esophagus, and trachea and other structures including lymph nodes. HP:0100721 Swollen lymph nodes in center of chest SNOMEDCT_US:52324001 UMLS:C0520743 Swollen lymph nodes in centre of chest