Footnotes

• Handling editor Iskander Chaudhry.

• Contributors The case was identified by MV. Both authors contributed equally to writing the manuscript.

• Competing interests None declared.

• Patient consent Detail has been removed from this case description/these case descriptions to ensure anonymity. The editors have seen the detailed information available and are satisfied that the information backs up the case the authors are making.

• Provenance and peer review Commissioned; internally peer reviewed.