Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is blunting of the left costophrenic angle in the area of the prior pleural effusion . This may represent pleural thickening or a small chronic effusion . It is unchanged in appearance from the prior exam approximately one week prior . There is no right - sided pleural effusion . There is no consolidation , pulmonary edema , or pneumothorax . The cardiomediastinal silhouette is normal . Atherosclerotic calcifications are noted in the aortic arch . An irregular contour of the lateral border of the fifth left rib is noted . No definite fracture is identified . This irregularity is new since the prior exam on ___ .
    OUTPUT:
    
1 . New lateral fifth left rib irregularity . Recommend further evaluation with dedicated rib radiographs . 2 . Stable small left chronic pleural effusion or pleural thickening . Results were entered into the critical communications results dashboard on ___ by Dr . ___ .