Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a normal cardiomediastinal silhouette . Again seen is a right chest wall pacer device with a single lead projecting over the right ventricle . There is a left lower lateral pneumothorax , new . Lucencies projecting over the right costophrenic angle and along the lateral right pleural surface may reflect blebs , better seen on today 's exam compared to ___ , versus right - sided pneumothoraces . Diffuse increased interstitial markings are compatible with known severe emphysema . Calcified plaques are likely related to prior asbestos exposure . No definite focal consolidation or pleural effusion is seen . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
Pneumothorax along the left lateral lower lung . Lucencies projecting over the right costophrenic angle and along the lateral right pleural surface may reflect blood is better seen on today 's exam compared to ___ versus additional right - sided pneumothoraces .