Footnotes

• Contributors CFH: performed the literature review and wrote the article drafts for review by senior clinicians. OMK: senior clinician in the case, identified the subject as a good case report, reviewed the article and made changes. LM: consultant respiratory physician, followed up the patient in clinic and provided valuable input for the finished article. JM: reviewed the article on multiple drafts and made changes. TH: reviewed the article and made changes, liaised with patient.

• 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.