Final answer:
Compensatory hyperinflation of adjacent lobes or hilar elevation may indicate lung collapse on the opposite side.
Step-by-step explanation:
Compensatory hyperinflation of the adjacent lobes or hilar elevation may indicate lung collapse on the opposite side. When a lung collapses, there is a loss of negative pressure in the pleural space, causing the lung to shrink and deflate. In response, the adjacent lobes may overinflate to compensate for the collapsed lung.