Heart, Mediastinum and Pleura

ICD-O-3 code T-C38 designates malignant neoplasms arising in the heart, mediastinum and pleura. It covers primary cardiac tumors, cancers of mediastinal structures such as thymus or lymph nodes, and pleural tumors including mesothelioma and other primary pleural malignancies. This topography group is used for coding and statistical reporting of cancers located in these thoracic sites.