Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: 5 mm rounded radiopaque nodular density projecting over the lateral right upper lung is seen , unclear whether this is external to the patient or pulmonary . Findings the further assessed with shallow obliques . The left lung is clear . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
5 mm rounded radiopaque nodular density projecting over the lateral right upper lung , unclear whether external to the patient or pulmonary . Findings could be further assessed with shallow oblique radiographs and if concern persists , CT .