Footnotes

• Contributors SVKS was the primary respiratory consultant looking after the patient. He performed the bronchoscopy and did the literature search for the article. AR is the consultant radiologist who reported the CT scan and provided images for the article and helped in the making of the final manuscript.

• 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.

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