Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Subtle increased density adjacent to the cardiac apex , with obscuration of the lower left cardiac border , has been present on multiple prior studies , and is thus likely chronic . No corresponding abnormality was identified on the lateral view performed one day prior . There is no further parenchymal opacity identified . There is no pleural effusion or pneumothorax . The cardiomediastinal contours are unchanged . There is no pulmonary vascular congestion or edema . There are no acute osseous abnormalities .
    OUTPUT:
    
No evidence of lobar pneumonia . Opacity adjacent to the cardiac apex at the left base appears to be chronic , though if there is concern for developing pneumonia radiographic follow - up would be appropriate .