Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal AP and lateral views of the chest were obtained . There are increased interstitial markings bilaterally with Kerley B lines . The heart is markedly enlarged , increased in size since ___ . There are small pleural effusions . No focal consolidation or pneumothorax . Aortic knob calcifications are again seen . There is no free air under the diaphragm . No acute osseous abnormality is identified . Degenerative changes are seen in the shoulder girdles bilaterally .
    OUTPUT:
    
Findings compatible with mild congestive heart failure .