Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval resorption of subcutaneous gas . A trace right apical pneumothorax persists . The lungs are well expanded . Small parenchymal basilar opacities are likely sequelae of prior chest tube insertion . The cardiac silhouette is normal in size , the mediastinal contours are normal . Nondisplaced posterior fractures are better appreciated on the comparison CT . There are small bilateral pleural effusions .
    OUTPUT:
    
Possible trace residual right apical pneumothorax , with small bilateral pleural effusions .