Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral chest radiographs were obtained . Comparison is made to prior radiograph dated ___ . Mildly prominent central vessels are noted as well as peripheral interstitial markings compatible with mild interstitial edema . Heart size is within upper limits of normal though AP is a sub optimal technique . Blunting of bilateral costophrenic angles is most consistent with small pleural effusions . Multilevel degenerative changes are noted throughout the thoracolumbar spine . Osseous structures are otherwise unremarkable .
    OUTPUT:
    
Mild interstitial edema . Small pleural effusions bilaterally .