Footnotes

• Contributors SG and AS were responsible for drafting of the text, sourcing and editing of clinical images, investigation results, drawing original diagrams and algorithms, and critical revision for important intellectual content. JPS and SK gave final approval of the manuscript.

• Funding The authors did not received any grant for this research from any funding agency.

• 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 There is no competing interest.

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