Thanks for your question on Healthcare Magic. I can understand your concern. Deviated trachea, not moving left sided chest wall, sudden onset breathlessness and chest pain are commonly seen with massive pleural effusion and pneumothorax. So better to consult pulmonologist and get done clinical examination of respiratory system and chest x ray. Chest x ray is must for the diagnosis of pleural effusion and pneumothorax. He may need ICD (intercostal drainage) tube insertion if it is pneumothorax. He may need pleural fluid aspiration if there is massive pleural effusion. Hope I have solved your query. I will be happy to help you further. Wishing good health to your husband. Thanks