Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chain sutures are noted overlying the peripheral left lung and right lung base consistent with known history of prior lung sections . A right pigtail pleural catheter appears unchanged in position . Cardiomediastinal silhouette is unchanged . Previously seen opacity at the right mid to lower lung appears unchanged compared to prior study and likely represents atelectasis however a superimposed pneumonia can not be excluded in the appropriate clinical setting . Small right pleural effusion is unchanged compared to prior radiograph from earlier the same day . There is persistent fluid tracking within the pleura along the right lateral chest . Small right apical pneumothorax is unchanged compared to study earlier the same day . Multiple postsurgical clips are noted in the mid abdomen
    OUTPUT:
    
1 . Small right pleural effusion , unchanged compared to prior study . 2 . Small right apical pneumothorax , unchanged compared to prior study . 3 . Right lower lung opacity , unchanged compared to multiple priors , likely represents atelectasis , however a superimposed pneumonia can not be excluded in the appropriate clinical setting .