Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Subtle somewhat linear opacity projecting over the right lung bases on the frontal view is not substantiated on the lateral view and may represent overlap of vascular structures . No focal consolidation is seen elsewhere . There is no pleural effusion or evidence of pneumothorax . The cardiac and mediastinal silhouettes are unremarkable . No evidence of free air is seen beneath the diaphragms .
    OUTPUT:
    
Small linear opacity projecting over the right lung base on the frontal view , not substantiated on the lateral view , may represent overlap of vascular structures . No focal consolidation seen elsewhere .