Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the most recent prior radiographs , there is no significant change . Very small left apical pneumothorax is improved . No focal consolidation , or pneumothorax . Small bilateral pleural effusions are stable . The cardiomediastinal silhouette is unremarkable . Lung bases are clear . Median sternotomy wires are intact .
    OUTPUT:
    
Very small residual left apical pneumothorax . Stable small bilateral pleural effusions are stable .