Received: 23 November 2020
Accepted: 3 February 2021
First Online: 11 February 2021
Ethics approval and consent to participate
: The study was approved by the hospital’s review board of Keio University School of Medicine.Written informed consent to participate was obtained from the patient.
: Written informed consent was obtained from the patients for publication of this case report and any accompanying images.
: The authors declare no conflicts of interest.