Footnotes

• Contributors MK: case report design, acquisition and interpretation of data, manuscript preparation. CE: critical revision of the manuscript content. TG: case report concept and design, interpretation of data, manuscript preparation, critical revision of the manuscript content.

• 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.