Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are relatively low lung volumes and the patient is rotated slightly to the left . Given this , no definite focal consolidation is seen . Mild left base atelectasis is seen . There is no large pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are grossly stable given differences in technique and patient position . An ovoid 1 .3 cm calcified left paratracheal structure may represent a calcified mediastinal lymph node .
    OUTPUT:
    
Low lung volumes with left base atelectasis . No definite focal consolidation .