Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated and clear . No focal consolidation or pneumothorax is present . A 7 - mm well - circumscribed nodular opacity in the lower lungs is similar to appearance on ___ .
    OUTPUT:
    
No acute cardiopulmonary process . Well - circumscribed opacity projecting over the right lower lung is most likely a nipple shadow rather than a nodule . Repeat radiographs with nipple markers and shallow obliques are recommended for confirmation . Findings were discussed via telephone with Dr . ___ at 15 :30 on ___ .