Footnotes

• Contributors NC saw the patient in the ED. AB saw the patient in her pulmonology department. NC and AB made the diagnosis. NC wrote the manuscript in consultation with AR. AR translated the manuscript before professional proof-read.

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

• Competing interests None declared.

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

• Patient consent for publication Obtained.