Received: 8 March 2020
Accepted: 12 May 2020
First Online: 24 May 2020
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of Kyorin University (number 1280; Tokyo, Japan). Written informed consent was obtained from the patient.
: Written informed consent was obtained from the patient for publication of this case report and any accompanying images.
: All authors declare that they have no competing interests.