Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is rotated somewhat to the left . The PAC is noted overlying the left lateral upper hemithorax . There is a relative opacity projecting over the left mid - to - lower lung , possibly in the lingula which could relate to patient positioning , underlying consolidation due to an infection or contusion given not excluded . No pleural effusion is seen . There is no evidence of pneumothorax . The cardiac and mediastinal silhouettes are unremarkable . Thoracic scoliosis is noted .
    OUTPUT:
    
Opacity projecting over the left mid - to - lower lung is nonspecific , however , may represent consolidation which could be due to infection or if in the setting of trauma pulmonary contusion .