Migrating ground glass opacities on computed tomography due to gravitation in a patient with pulmonary alveolar proteinosis

Main Article Content

Eiki Ichihara
Nagio Takigawa *
Katsuya Kato
Yasushi Tanimoto
Ichiroh Yamadori
Katsuyuki Kiura
Mitsune Tanimoto
(*) Corresponding Author:
Nagio Takigawa | ntakigaw@gmail.com

Abstract

An 80-year-old man presented with heterogeneous ground glass opacity, with interlobular septal thickening in the left lower lobe. The histology of a surgical lung biopsy showed alveolar proteinosis. Computed tomography revealed that the ground glass opacity and interlobular septal thickening observed dorsally in the supine position migrated to the ventral side in the prone position. To the best of our knowledge, this is the first report of a posture-dependent migrating shadow in a patient with pulmonary alveolar proteinosis.

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Author Biographies

Eiki Ichihara, Okayama University Hospital

Department of Respiratory Medicine

Nagio Takigawa, Okayama University Hospital

Department of  Respiratory Medicine

Katsuya Kato, Okayama University Hospital

Department of Radiology

Yasushi Tanimoto, Okayama University Hospital

Department of Respiratory Medicine

Ichiroh Yamadori, Okayama Medical Center

Laboratory Investigation Section

Katsuyuki Kiura, Okayama University Hospital

Department of Respiratory Medicine

Mitsune Tanimoto, Okayama University Hospital

Department of Respiratory Medicine