Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left pleural effusion has decreased slightly , now small to moderate . Substantial left lower lobe atelectasis is unchanged . The small right - sided peridiaphragmatic collection of air and fluid is unchanged . This collection could be subphrenic or possibly subpulmonic based on the provided images . Cross - sectional imaging could be performed for exact anatomic location . 2 right - sided chest wall drains are in unchanged position . The enteric tube ends within the remaining intrathoracic esophagus . There is no focal consolidation , pneumothorax , or pulmonary edema . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
1 . Slight decrease in left pleural effusion , now small to moderate . 2 . Stable small right peridiaphragmatic collection of air and fluid .