Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A focal nodular density is visualized within the left lung base . This may represent a pulmonary parenchymal nodule or a lesion in the overlapping rib . No confluent opacity is identified to suggest pneumonia . There is no pulmonary edema or pleural effusions . No pneumothorax is evident . Cardiomediastinal and hilar contours are within normal limits .
    OUTPUT:
    
Nodular opacity in the left lung base requiring further evaluation . Recommend follow - up radiographs including routine oblique views bilateral and a shallow ___ view for further evaluation . Dr . ___ discussed the updated findings with Dr . ___ at 9 : 46 am on ___ by telephone .