Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are clear overall , though slight obscuration of the left costophrenic sulcus is seen which may be due to atelectasis , though pneumonia can not be fully excluded . There is no right - sided pleural effusion or pneumothorax . The heart is top normal in size with normal cardiomediastinal silhouette . No displaced rib fractures are seen .
    OUTPUT:
    
No displaced rib fractures , but right ribs are incompletely imaged on this radiograph . Left basal opacity likely atelectasis , though in the setting of infectious symptoms pneumonia should be considered . This was discussed with Dr . ___ by Dr . ___ at ___ on ___ by phone .