Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is chronic postradic changes and pleural apical thickening in the right upper lobe . The bibasilar opacities and moderate pleural effusion have slightly progressed since the last exam . A superimposed infection can not be excluded . There is no pulmonary edema . Stable calcified lymph node in the left paratracheal region . No pneumothorax . Degenerative change of the shoulders . Since the last exam , a gastrostomy tube has been installed .
    OUTPUT:
    
Mild worsening of the bibasilar opacities and pleural effusion . A superimposed infection can not be excluded . No pulmonary edema .