Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A moderate right hydropneumothorax is mildly increased within increased air component at the right lung base . An opacity at the right heart border is of uncertain etiology . The heart size is within normal limits . Subcutaneous emphysema in the right chest wall is unchanged . Interstitial and mild pulmonary edema in the right lung base is unchanged .
    OUTPUT:
    
1 . A moderate right hydropneumothorax is mildly increased with an increased air component at the right lung base . 2 . An opacity at the right heart border is of uncertain etiology , however could represent right middle lobe torsion . Clinical correlation is recommended and if indicated a CT of the chest could be obtained for further evaluation .