Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . No prior . Two nodular opacities are identified , one in each of the lower lobes on the frontal view , however , they are not clearly delineated on the lateral . Lungs are otherwise clear . There is minimal blunting of the posterior costophrenic angles suggesting either trace effusion or perhaps atelectasis . The cardiomediastinal silhouette is within normal limits as are the osseous and soft tissue structures .
    OUTPUT:
    
Nodular opacities , one projecting over each of the lung bases for which repeat exam is suggested to evaluate if they persist .