Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . Prior right IJ line is no longer visualized . The lungs are clear of focal consolidation . Increased opacity projects over the left posterior eighth rib with mild associated contour irregularity suggesting callus formation from prior fracture . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
No acute cardiopulmonary process .