Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left subclavian catheter is present with tip in the lower SVC . Cardiomediastinal contours remain stable . There is no pleural effusion or pneumothorax . Opacities in the upper lobes has become denser since the prior study but has not changed in area .
    OUTPUT:
    
Progression of upper lobe opacities consistent with aspiration or pulmonary edema .