[Computerized tomography in the diagnosis of allergic bronchopulmonary aspergillosis].

In four patients with immunologic and laboratory findings consistent with allergic bronchopulmonary aspergillosis a CT of the chest was performed. CT revealed central bronchiectasis in all patients. Other features of the condition revealed by CT were mucoid impaction, peripheral alveolar infiltrates, and segmental or subsegmental atelectasis. Owing to their central location the bronchiectatic bronchi always appear parallel to the image plane. This means they can generally be visualized by CT.