Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are normal . No focal consolidation pleural effusion or pneumothorax . Note is made of a 1 .5 cm rounded density at the left lung base , likely representing a hamartoma or calcified granuloma . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities identified .
    OUTPUT:
    
1 . No acute cardiopulmonary process .