Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes accentuate the cardiac and mediastinal contours and result in bronchovascular crowding . Bilateral heterogeneous pulmonary opacities are more severe in the left lung than the right . Right hemidiaphragm is moderately elevated . No pleural effusion or pneumothorax . Nasogastric tube terminates in the stomach but side port is at or just above the GE junction
    OUTPUT:
    
Nonspecific heterogeneous lung opacities , which have been more fully characterized by subsequently performed and separately dictated CTA of the chest from the same date .