What term is used to describe the predominance of edema in the hilar regions of both lungs with progressively less edema in the more peripheral areas of the lungs as seen on the chest film?

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The term "bat's wing" is used to describe the pattern of edema in the hilar regions of both lungs with progressively less edema in the more peripheral areas of the lungs on a chest film. This pattern is seen in conditions such as pulmonary edema due to heart failure. "Hilar wings" and "heart wings" are not commonly used terms in medical literature. "Butterfly wings" is not a term used to describe any specific lung pathology.

What Term Is Used to Describe the Predominance of Edema