Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal . A 4 mm nodular opacity in the left lung apex is new since the prior study of ___ . No consolidation or pulmonary edema is seen . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No pneumonia . New 4 mm nodular opacity in the left lung apex , for which a non-emergent chest CT is recommended . The above finding was discussed by phone with Dr .___ at 11 :15 p .m on ___ .