Footnotes

• Contributors ASA was responsible for writing up the case and preparing the manuscript, including obtaining consent and conducting the literature search. NAM provided important intellectual content for the write-up and finalised the manuscript before submission. RI contributed to the analysis and interpretation of the data and revised the article. ARM provided expertise to comanage the patient and contributed to patient management and article design.

• 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.

• Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

• Competing interests None declared.

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