Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral images of the chest demonstrate well - expanded lungs . There is a large amount of apical pleural thickening on the left . Apneumothorax is again seen on the right , unchanged with no evidence of tension . Evidence of prior breast surgery is noted . The lungs are otherwise clear . There is no pleural effusion . Cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
Unchanged chest radiograph . Stable right pneumothorax without evidence of tension .