Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear unchanged . There is no definite pleural effusion or pneumothorax . The lungs appear clear . There is minimal opacification in each left costophrenic angle , probably minor atelectasis .
    OUTPUT:
    
Suspected minor atelectasis with no definite evidence for acute disease .