Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Right IJ access Port - A - Cath is again seen with its tip in the region of the right atrium . Overlying EKG leads are present . The lung volumes are somewhat low . Vague opacity in the lower lungs could reflect crowding of bronchovascular markings and atelectasis given low lung volumes though small partially layering pleural effusions difficult to exclude . Cardiomediastinal silhouette is stable . No large pneumothorax . No convincing evidence for pneumonia . Bony structures are intact .
    OUTPUT:
    
Possible small bilateral pleural effusions . Low lung volumes with crowding of bronchovascular markings within the lower lungs .