Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is mild to moderately enlarged with a left ventricular predominance . The aorta is tortuous and diffusely calcified . There is mild pulmonary edema , similar compared to the most recent exam . Small left pleural effusion is likely present . There is no pneumothorax identified . Evaluation of the extreme lung apices is obscured due to the patient 's chin overlying this region . No acute osseous abnormalities are visualized .
    OUTPUT:
    
Mild congestive heart failure and small left pleural effusion .