Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are lower on the current exam . Despite this , there increased interstitial markings seen bilaterally . There is no confluent consolidation or effusion . Cardiac silhouette appears enlarged but likely accentuated by lower lung volumes . No acute osseous abnormalities .
    OUTPUT:
    
Increased interstitial markings throughout the lungs which could be in part due to vascular crowding in setting of low lung volumes although superimposed interstitial edema or atypical infection or suspected .