Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no focal consolidation , pleural effusion or pneumothorax . Two subtle nodular opacities project over the superior aspect of the heart on the lateral view and are not clearly identified on the frontal view . The cardiomediastinal silhouette is normal . The imaged upper abdomen is unremarkable .
    OUTPUT:
    
Two subtle nodular opacities project over the heart on the lateral view and are of unclear etiology . Recommend shallow lateral obliques for further evaluation . Subsequent oblique views show that the questioned lung lesions are external artifact 's .