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Vanishing lung syndrome mimicking pneumothorax
  1. Chih-Cheng Lai1,
  2. Shih-Horng Huang2,
  3. Tsu-Tuan Wu3,4,
  4. Sheng-Hsiang Lin3,4
  1. 1Department of Intensive Care Medicine, Chi-Mei Medical Center, Liouying, Tainan, Taiwan
  2. 2Department of Surgery, New Taipei City Hospital, New Taipei, Taiwan
  3. 3Department of Internal Medicine, New Taipei City Hospital, New Taipei, Taiwan
  4. 4Department of Respiratory Therapy, Fu-Jen Catholic University, New Taipei, Taiwan
  1. Correspondence to Dr Sheng-Hsiang Lin, Department of Internal Medicine, New Taipei City Hospital, No 2, Chung-Shan Rd, San-Chong Dist, New Taipei City 24141, Taiwan; linsh01{at}

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In patients with a hyperlucent lung, radiological differentiation between a pneumothorax and a giant bulla is not always definitive. This may result in a chest tube insertion into a pulmonary bulla with devastating results or a delay in initiating appropriate treatment for pneumothorax. Usually, distinctions between the pleural line of a pneumothorax and the bulla wall can be made by computed tomography (CT). In addition, the double wall sign of pneumothorax (parallel bulla wall and chest wall outlined by air outside the bulla) is useful in recognising the coexistence of bullae and pneumothoraces.1 Here we report a case of vanishing lung syndrome, which was diagnosed by CT in a man who presented with sudden onset of …

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  • Contributors All authors contributed equally.

  • Competing interests None.

  • Patient consent Obtained.

  • Provenance and peer review Not commissioned; internally peer reviewed.