Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . The lungs are essentially clear . Nodular opacities projecting over the lower lungs bilaterally on the frontal view are most suggestive of nipple shadows . There is no effusion or pulmonary vascular congestion . The cardiomediastinal silhouette is within normal limits . Minor atherosclerotic calcifications seen at the aortic arch . No acute osseous abnormality detected .
    OUTPUT:
    
No definite acute cardiopulmonary process . Nodular opacities projecting over the lung bases suggestive of nipple shadows but should be confirmed with repeat frontal view with nipple markers in place .