Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Rounded opacity projecting over the left hemi-diaphragm unchanged from ___ , the date of earliest available imaging , potentially eventration of the diaphragm . No pleural effusion , pneumothorax or focal airspace consolidation . Heart is mildly enlarged but unchanged . Mediastinal hilar contours are unremarkable .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Rounded opacity projecting over left hemidiaphragm is unchanged from ___ . Nonemergent chest CT imaging is recommended for further evaluation .