Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right costophrenic angle is obscured by overlying soft tissue , however there is probably a small right pleural effusion . Otherwise , the lungs are clear . There is mild bulging of the right heart border , which may represent right atrial enlargement and right heart strain . The pulmonary vasculature is normal . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
1 . No evidence of pulmonary infarct . 2 . Probable small right pleural effusion . 3 . Mild bulging of the right heart border , which may represent right heart strain .