Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . The lungs are clear of consolidation , effusion or pulmonary vascular congestion . Cardiomediastinal silhouette is stable in configuration . Vascular coronary stent is also noted . Nodular opacity projecting over the right mid lung laterally is compatible with callous from prior rib fracture . Chronic changes noted at the proximal left humerus suggestive of prior trauma . No acute osseous abnormality detected .
    OUTPUT:
    
No acute cardiopulmonary process .