Received: 27 May 2021
Accepted: 29 September 2021
First Online: 9 October 2021
: This study was approved by the Ethical Committee of Keio University Hospital (#20160084).
: Written informed consent was obtained from the patient for publication of this case report. A copy of the consent form is available for review by the Editor of this journal.
: The authors declare that they have no competing interests.