Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes seen on the current exam . There is a moderate left and small right pleural effusion , these are likely increased since prior CT . Low lung volumes result in bronchovascular crowding . There is suggestion of superimposed vascular congestion with possible mild edema . Right chest wall port is again noted . Cardiac silhouette is grossly unchanged . Multiple sclerotic foci are identified in the osseous structures including the proximal left humerus and likely of the scapula
    OUTPUT:
    
Moderate left and small right pleural effusion , likely increased since prior CT . Suspected superimposed vascular congestion with mild edema . Underlying infection , particularly on the left , would be difficult to exclude .