Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Although partly obscured by opacification in the left hemithorax , the heart is probably normal in size . Left hilum is obscured by a consolidation involving much of the central part of the left upper lobe with some accompanying volume loss and leftward shift . Right hilar and mediastinal contours are unremarkable . There is also a small pleural effusion on the left and , more generally , a diffuse interstitial abnormality including bilateral fissural which suggests coinciding pulmonary edema . Opacification of the left upper lobe is heterogeneous and somewhat nodular although likely infectious .
    OUTPUT:
    
1 . Central consolidation in the left upper lobe suggesting pneumonia . Particularly given the distribution and some possible nodularity , it is important to pursue follow - up radiographs to show resolution in ___ weeks if clinical circumstances also suggest pneumonia . Otherwise chest CT is suggested . 2 . Findings consistent with moderate coinciding pulmonary edema . 3 . Small pleural effusion on the left .