Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ , left peripheral basilar opacity with small pleural effusion correlates to the region of known pulmonary embolus . The cardiomediastinal silhouette is unchanged . No pneumothorax , pneumonia , or pulmonary edema . The known left lower lobe nodule is not as well seen on today 's exam and is better assessed on recent CT chest from ___ .
    OUTPUT:
    
1 . Left peripheral basilar opacity with small left pleural effusion correlates to the region of known pulmonary embolus . 2 . The known left lower lobe nodule is not as clearly seen on today 's exam , and is better assessed on recent CT Chest from ___ .