Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bedside AP radiograph of the chest redemonstrate a right - sided pneumothorax , developed after placement of a pleural catheter . There is no change in the size nor the degree of mild rightward shift of the trachea . Underlying right hemi-thoracic opacity is due to disseminated replacement of airspaces with tumor , as supposed to a large component of pleural effusion . The left lung is also unchanged , with diffuse opacities resulting from disseminated tumor . There is no left - sided effusion or pneumothorax .
    OUTPUT:
    
Stable appearance of disseminated lung cancer and right - sided pneumothorax .