Footnotes

• Contributors EPF was involved in drafting and revising the manuscript for content, including medical writing for content, study concept and design, analysis and interpretation of data, and acquisition of data. TJK was involved in revising the manuscript for content, including medical writing for content, analysis and interpretation of data, and acquisition of data. BMK was involved in drafting and revising the manuscript for content, including medical writing for content, study concept and design, analysis and interpretation of data, acquisition of data and study supervision.

• Competing interests Eoin Flanagan has no disclosures. Dr Kaufmann has no disclosures. B Mark Keegan is compensated as a Chief Editor of eMedicine, has consulted for Bristol Meyers Squibb, Novartis and Bionest and receive research support from Terumo BCT.

• Patient consent Obtained.

• Ethics approval This was a case report. Patient consented to use of research for study.

• Provenance and peer review Not commissioned; externally peer reviewed. This paper was reviewed by Michael Lunn, London, UK and Shelley Renowden, Bristol, UK.