pT4: tumor de pulmón como lo define la sexta edición del American Joint Committee on Cancer (pulmón)
pT4: Tumour of any size that invades any of the following: mediastinum, heart, great vessels, trachea, oesophagus, vertebral body, carina; or separate tumour nodules in the same lobe; or tumour with malignant pleural effusion (lung)