Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right breast shadow is absent in this patient with history of prior mastectomy . Surgical clips are seen in the right axillary region . There is mild blunting of the right costophrenic angle suggesting a small right pleural effusion . Mild bibasilar atelectasis is seen . No definite focal consolidation . There is no evidence of pneumothorax . The cardiac silhouette is stable . There is possible slight prominence enlargement of the right of the lower right peritracheal soft tissue as compared to prior study . No overt pulmonary edema is seen .
    OUTPUT:
    
1 . Small right pleural effusion . Bibasilar atelectasis . 2 . Subtle rounded enlargement of the inferior right paratracheal soft tissue density , suggest further evaluation on nonemergent chest CT in this patient with history of breast cancer .