Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Stable cardiomegaly and tortuosity and calcification of the thoracic aorta . The lung volumes are low , resulting in crowding of bronchovascular structures . With this in mind , patchy opacities at both lung bases probably reflect areas of atelectasis . Focal aspiration and early pneumonia are additional considerations . Bones are demineralized and note is made of marked kyphosis on the lateral view as well as mild decreased height of upper - to - mid thoracic vertebral bodies .
    OUTPUT:
    
Patchy bibasilar opacities probably reflect atelectasis .