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KMID : 0880420000010010033
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Korean Journal of Radiology
2000 Volume.1 No. 1 p.33 ~ p.37
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Migrating Lobar Atelectasis of the Right Lung: Radiologic Findings in Six Patients
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Kyung Soo Lee/Tae Sung Kim
Kyung Soo Lee/Jung Hwa Hwang/In Wook Choo/Jae Hoon Lim
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Abstract
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Objective: To describe the radiologic findings of migrating lobar atelectasis of the right lung.
Materials and Methods: Chest radiographs (n = 6) and CT scans (n = 5) of six patients with migrating lobar atelectasis of the right lung were analyzed retrospectively. The underlying diseases associated with lobar atelectasis were bronchogenic carcinoma (n = 4), bronchial tuberculosis (n = 1), and tracheobronchial amyloidosis (n = 1).
Results: Atelectasis involved the right upper lobe (RUL) (n = 3) and both the RUL and right middle lobe (RML) (n = 3). On supine anteroposterior radiographs (n = 5) and on an erect posteroanterior radiograph (n = 1), the atelectatic lobe(s) occupied the right upper lung zone, with a wedge shape abutting onto the right mediastinal border. On erect posteroanterior radiographs (n = 6), the heavy atelectatic lobe(s) migrated downward, forming a peri- or infrahilar area of increased opacity and obscuring the right cardiac margin. Erect lateral radiographs (n = 4) showed inferior shift of the anterosuperiorly located atelectatic lobe(s) to the anteroinferior portion of the hemithorax.
Conclusion: Atelectatic lobe(s) can move within the hemithorax according to changes in a patient's position. This process involves the RUL or both the RUL and RML.
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KEYWORD
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Lung, collapse, Lung, diseases, Lung, radiography,
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