lobectomy vspneumonectomy.

The differences:
1. The signs of lobectomy are confined to lobe which is removed. The signs are similar to pleural effusion except it is not stony dull.

2. The signs of pneumonectomy are extensive i.e. involve the whole lung. The side involved would be flatten. It is similar to whole lung collapse.

3. Normally, the tracheal is central in lobectomy except for upper lobe. The tracheal is almost always shifted in pneumonectomy.