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Case report
Secondhand smoke from electronic cigarette resulting in hypersensitivity pneumonitis
  1. Panagis Galiatsatos1,2,
  2. Erin Gomez3,
  3. Cheng Ting Lin3,
  4. Peter B Illei4,
  5. Pali Shah1 and
  6. Enid Neptune1
  1. 1Pulmonary and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
  2. 2Medicine for the Greater Good, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
  3. 3The Russell H Morgan Department of Radiology and Radiological Science, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
  4. 4Pathology and Cytopathology, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
  1. Correspondence to Dr Panagis Galiatsatos; panagis{at}


Cases of vaping-induced lung injury have increased in the USA, resulting in a heterogeneous collection of pneumonitis patterns in persons who used electronic cigarettes. Hypersensitivity pneumonitis has been documented in several cases of first-hand electronic cigarette use; however, secondhand smoke health-related consequences have not been fully understood. We present a case of the patient who developed hypersensitivity pneumonitis secondary to exposure to secondhand smoke from electronic cigarette. We summarise the presentation and diagnostic investigation, as well as the management of this case.

  • interstitial lung disease
  • bronchopulmonary dysplasia
  • tobacco related disease
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  • Contributors PG, PS and EN helped design the case report and review the case thoroughly. EG and CL and PBI all contributed in reviewing the case, the manuscript draft and providing thorough edits, as well as insight from their respective fields (radiology and pathology). All authors assured the manuscripts final draft was well-written and edited thoroughly.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Patient consent for publication Obtained.

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

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