Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP , lordotic and lateral views of the lungs . Apparent nodular opacity at the right lung apex is likely due to summation shadows from ribs . There has been no change since earlier exam without consolidation , effusion or pulmonary vascular congestion . Cardiomediastinal silhouette is within normal limits . Hypertrophic changes are seen in the spine .
    OUTPUT:
    
No visualized right apical nodule , which was likely due to summation of shadows .