Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are obtained . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . Subtle increased opacity projecting in the right lung base is felt to be artifactual . The cardiac silhouette is not enlarged . The aorta is slightly tortuous . There is irregularity at the distal left clavicle , which may relate to prior trauma .
    OUTPUT:
    
No definite acute cardiopulmonary process . Irregularity at the distal left clavicle may relate to prior trauma , correlation with clinical history advised .