Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Low lung volumes result in bronchovascular crowding . Heterogeneous opacity at the left lower lobe is concerning for pneumonia . The right lung is clear . There is no pleural effusion or pneumothorax . Heart size is upper limits of normal allowing for lung volumes . Mediastinal silhouette and hilar contours are normal . Pulmonary vasculature is normal . Degenerative change is seen at the acromioclavicular joints bilaterally .
    OUTPUT:
    
Left lower lobe pneumonia . Follow up radiographs after treatment are recommended to ensure resolution of this finding .