Received: 1 July 2020
Accepted: 20 September 2020
First Online: 9 October 2020
Ethics approval and consent to participate
: This study complied with the Declaration of Helsinki and was approved by the Human and Animal Ethics Review Committees of Nippon Medical School, Japan (30–-07-964).
: Written informed consent was obtained from the patient for publication of this report and accompanying images.
: The authors declare that they have no competing interests.