Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral chest radiographs demonstrate persistent low lung volumes and opacification at the left lung base that may represent pneumonia in the proper clinical setting . The cardiomediastinal silhouette is stable . The right lung is clear . There is no pneumothorax . The right PICC terminates in a standard position .
    OUTPUT:
    
Probable left basilar pneumonia .