Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged with a left ventricular configuration . There is no right - sided pleural effusion . Slight blunting of the left costophrenic sulcus makes it difficult to exclude a small pleural effusion on the left . There is a patchy medial right lower lung opacity that appears streaky , suggestive of atelectasis , although not entirely specific . Otherwise , the lungs appear clear .
    OUTPUT:
    
Streaky medial right lower lung opacity , which may be due to atelectasis in the right middle lobe , although an infectious etiology is not completely excluded . Short - term followup PA and lateral views may be helpful , if clinically , indicated to reassess .