Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . There is no pleural effusion or pneumothorax . Although heterogeneous widespread bilateral interstitial opacities in conjunction with fissural thickening and a small pleural effusion on the right suggest pulmonary edema . Possibility of coinciding pneumonia or atypical infectious etiology is not excluded , however , particular at noting asymmetry wherein left perihilar opacity is more prominent than right lung opacities .
    OUTPUT:
    
Moderate generalized interstitial opacification suggesting pulmonary edema . Infection as a coinciding or alternative etiology is not excluded , however . Small right - sided pleural effusion .