Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . There has been no change from prior exam . Peripheral and lower lobe opacities are noted which could represent an atypical pneumonia versus aspiration . Small effusions may be present . No large pneumothorax . Cardiomediastinal silhouette is unchanged . No acute bony injuries . Old left rib deformity .
    OUTPUT:
    
Peripheral and lower lobe opacities concerning for atypical infection versus aspiration . Probable small bilateral pleural effusions .