Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is a 3 .6 cm linear radiopaque structure projecting over the soft tissue of the left neck on the frontal view , not well evaluated on the lateral view , may be external to the patient . Please correlate clinically . There is mild pulmonary vascular congestion and minimal bibasilar atelectasis . No definite focal consolidation is seen . There is no pleural effusion or pneumothorax . The cardiac silhouette is top normal to mildly enlarged . The aorta is calcified and tortuous .
    OUTPUT:
    
1 . Low lung volumes with mild pulmonary vascular congestion and mild bibasilar atelectasis . 2 . 3 .6 cm linear radiopaque structure projecting over the soft tissue of the left lateral neck , unclear whether external to the patient . Please correlate with direct visualization .