What is a linear atelectasis?

Linear atelectasis refers to a type of lung collapse characterized by a linear opacity seen on imaging, typically on a chest X-ray. It occurs when small segments of lung tissue collapse due to factors such as shallow breathing, obstruction, or fluid accumulation. This condition can lead to reduced gas exchange and may be associated with underlying pulmonary issues. Treatment often involves encouraging deep breathing and mobilization to re-expand the affected lung areas.