What is not the indication of thoracotomy? A: Cardiac surgery B: Pneumonectomy C: Anterior mediastinal tumor D: Mastectomy

What is the most common cause of pulmonary aspiration A: Accidentally inhalation of food or liquid material B: Bronchitis C: High blood pressure D: Mediastinal Cancer

Which of the statements on invasive thymoma is incorrect? A: Multiple metastases are likely to happen in the lung. B: CT manifests as an irregular mass with unclear edges. C: The main sign of mediastinal invasion is the disappearance of fat space. D: It can grow along the pleura to the posterior mediastinum and pericardium on the same side. E: It can grow along the pleura to the posterior mediastinum and pericardium on the same side.

Which of the statements on invasive thymoma is incorrect? A: Multiple metastases are likely to happen in the lung B: CT manifests as an irregular mass with unclear edges C: The main sign of mediastinal invasion is the disappearance of fat space D: It can grow along the pleura to the posterior mediastinum and pericardium on the same side E: It can enter the abdominal cavity through the aortic orfice and diaphragmatic aperture