Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs were obtained . Lung volumes remain very low . A persistent tiny left apical pneumothorax remains without evidence of tension . Bilateral small pleural effusions are present with compressive atelectasis at the bases . Postoperative cardiomediastinal silhouette and hilar contours are stable .
    OUTPUT:
    
1 . Persistent tiny left apical pneumothorax . 2 . Small bilateral pleural effusions with compressive atelectasis .