Footnotes

• Contributors The authors confirm contribution to the paper as follows. Study conception and design: BSF, MM, AC and OM. Data collection: BSF and MM. Analysis and interpretation of results: BSF, MM and AC. Draft manuscript preparation: BSF. All authors, BSF, MM, AC and OM, reviewed the results and approved the final version of the manuscript. BSF is the guarantor.

• 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.