Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Right apical pneumothorax is slightly improved . Allowing for differences in patient positioning , the right - sided effusion is probably similar in volume . No focal consolidation . Mitral valve ring appears in similar location . Left shoulder calcific tendonitis appears similar to prior exam .
    OUTPUT:
    
1 . Right apical pneumothorax is slightly improved . 2 . Allowing for differences in patient positioning , the right - sided effusion is probably similar in volume . 3 . Mitral valve ring appears in similar location .