Where Is Bibasilar Atelectasis?

Bibasilar atelectasis is a condition that happens when you have a partial collapse of your lungs. This type of collapse is caused when the small air sacs in your lungs deflate. These small air sacs are called alveoli. Bibasilar atelectasis specifically refers to the collapse of the lower sections of your lungs.

Where is the atelectasis located?

Atelectasis is a partial or complete collapse of the entire lung or a specific area, or lobe, of the lung, leading to impaired exchange of carbon dioxide and oxygen. Atelectasis occurs when the alveoli (small air sacs) within the lung become deflated or fill with alveolar fluid.

Where is atelectasis most common?

Because the right middle lobe orifice is the narrowest of the lobar orifices and because it is surrounded by lymphoid tissue, it is the most common lobe to become atelectatic. This is referred to as right middle lobe syndrome.