Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs . 4 .3 x 2 .4 - cm nodular opacity in the right upper lobe was not present on prior radiographs . There is no focal consolidation , pleural effusion , or pneumothorax . Mild hyperinflation is chronic . The heart size is normal .
    OUTPUT:
    
4 .3 - cm right upper lobe nodular opacity is suspicious for malignancy and further characterization with CT is recommended . Findings were discussed by Dr . ___ with Dr . ___ by phone at 3 : 52 a .m . on ___ .