Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . No focal consolidation , pleural effusion or pneumothorax . The cardiomediastinal and hilar contours are normal . There is an opacity adjacent to the right heart border .
    OUTPUT:
    
Opacity adjacent to the right heart border , which may represent a benign fat collection or benign cyst . No pneumonia .