Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is slight blunting of the right costophrenic angle and a very trace pleural effusion is difficult to exclude . No definite focal consolidation is seen . There is no pneumothorax . The cardiac silhouette is not enlarged . Mediastinal contours are unremarkable . Aortic knob calcification is seen . There is no overt pulmonary edema .
    OUTPUT:
    
Minimal blunting of the right costophrenic angle , very trace pleural effusion is difficult to exclude . Aside from this , no acute cardiopulmonary process seen .