Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest is compared to CT of the chest from ___ . Linear opacities in the left mid lung are suggestive of scarring . Surgical chain sutures also seen suggesting prior resection . There is obscuration of the left lateral costophrenic angle compatible with prominent fat identified on CT . Elsewhere , the lungs are clear without confluent consolidation . The cardiomediastinal silhouette is within normal limits . Anterior lower cervical and upper thoracic spinal fixation hardware is identified . The osseous structures are otherwise grossly unremarkable .
    OUTPUT:
    
No definite acute cardiopulmonary process .