Footnotes

• Contributors LD, CC, CB and CG conceived the case report. CC obtained written consent from the patient’s next-of-kin. LD, CC, KK, NG, JV and JH cowrote the first draft. LD, DM and BJ sourced and reported high-quality images for this study. RC, CB, JP, TY, JM and CG revised the manuscript for important intellectual content. All authors have read and approve the final version of the 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.

• Patient consent for publication Next of kin consent obtained.

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