Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A frontal upright view of the chest was obtained portably . There is no focal consolidation or pneumothorax . A left pleural effusion is tiny , if any . Pulmonary vasculature is normal . Mild cardiomegaly is unchanged . Aortic knob calcifications are again seen .
    OUTPUT:
    
No pneumonia or edema .