Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A small to moderate size pneumothorax on the right is demonstrated , predominanly loculated along the base , with adjacent lung atelectasis . Lungs are hyperinflated with attenuation of the pulmonary vascular markings towards the apices compatible with mild emphysematous changes . The cardiac , mediastinal and hilar contours are normal without leftward shift of mediastinal structures . No focal consolidation or pleural effusion is demonstrated . There are no acute osseous abnormalities .
    OUTPUT:
    
Small to moderate size right pneumothorax , predominantly loculated along the base , without evidence of tension .