Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear of consolidation . There is a 1 cm nodular opacity projecting over the left lung base which persists on two frontal views but not seen on the lateral . Cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No acute process . 1 cm nodular opacity projecting over the left lung base for which non urgent chest CT is suggested . The last sentence of the impression was communicated to the patient 's PCP by the ___ QA nurse via ___mail on ___ after request by the resident .