Declarations:

  1. Funding – Not applicable.
  2. Conflicts of Interest/Competing interests – On behalf of all authors, the corresponding author states that there is no conflict of interest.
  3. Ethics approval – Not applicable.
  4. Consent to participate – Informed consent was obtained from all individuals included in the case report.
  5. Consent for publication – The patients featured within this case report have provided written consent to grant to any third party, in advance and in perpetuity, the right to use, reproduce or disseminate the article in its entirety or in part, in any format or medium.
  6. Availability of data and material – The authors confirm that the data supporting the findings of this study are available within the article [and/or] its supplementary material.
  7. Code availability – Not applicable.
  8. Authors’ contributions – All authors have contributed significantly to this work, and all authors are in agreement regarding the content of the manuscript. N Manolios and D Sebaratnam contributed by sharing their individual experiences with the two cases and M Hamid and I Liang were involved in the write-up and literature review of this case.