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A 17-month-old boy presented with shortness of breath of 3 days' duration. Physical examination showed a respiratory rate of 38/min and no breath sounds over the left hemithorax. Chest radiography showed a large air-filled structure in the left hemithorax, mimicking encapsulated pneumothorax (figure 1). CT identified a large structure containing air and fluid occupying the entire left hemithorax (figure 2).
Footnotes
Contributors Conception and design: TY, YZ. Collection and interpretation of data: TY, JY, JL, JP. Drafting of the manuscript: TY, YZ. Approval of the final version of the manuscript: TY, JY, JL, JP, YZ.
Competing interests None declared.
Patient consent Obtained.
Ethics approval The Institutional Review Board of Guangzhou Women and Children's Medical Center (Guangzhou, China).
Provenance and peer review Not commissioned; externally peer reviewed.