Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , leading to crowding of the bronchovascular structures . There is no evidence of focal consolidation , pleural effusion , pneumothorax , or frank pulmonary edema . The heart remains moderately enlarged , although this is accentuated by AP technique and low lung volumes . Calcified AP window node is again noted . A right - sided Port - A - Cath terminates within the upper-mid SVC , unchanged in position from the prior exam .
    OUTPUT:
    
Low lung volumes without evidence for acute cardiopulmonary process .