Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Mild left mid - to - lower lung atelectasis / scarring is seen . On lateral view , there is upper lobe consolidation seen anteriorly , not well substantiated on the frontal view but may be in the left upper lobe . The right lung is clear . There is no right pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are stable . Degenerative changes are seen along the spine .
    OUTPUT:
    
Opacity projecting over the anterior upper lungs on the lateral view , not well substantiated on the frontal view but may be in the left upper lobe , could be due to infection or aspiration . Areas of left mid - to - lower lung atelectasis .