Lung Cancer pT4 TNM Finding v9

**Semantic type:** Finding

**Definition:** Lung cancer with tumor measuring more than 7 cm in greatest dimension or tumor of any size with one or more of the following features: invasion of mediastinum (except structures listed in T3), thymus, trachea, carina, recurrent laryngeal nerve, vagus nerve, esophagus or diaphragm; invasion of heart, great vessels (aorta, superior/inferior vena cava, intrapericardial pulmonary arteries/veins), supra-aortic arteries or brachiocephalic veins; invasion of subclavian vessels, vertebral body, lamina, spinal canal, cervical nerve roots or brachial plexus (i.e., trunks, divisions, cords or terminal nerves); presence of separate tumor nodule(s) in a different ipsilateral lobe than that of the primary. (from AJCC 9th Ed.)