Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrates low lung volumes and bibasilar atelectasis . Right heart border is not well visualized , possibly due to the fact the patient rotation . No pleural effusion . No pneumothorax . Persistent mild cardiomegaly . Mediastinal contour and hila are otherwise unremarkable . Limited assessment of the upper abdomen is within normal limits .
    OUTPUT:
    
Questionable right middle lobe opacity . Recommend repeat non rotated frontal chest radiograph to exclude focal atelectasis or pneumonia in this region .