Received: 13 February 2020
Accepted: 8 September 2020
First Online: 14 September 2020
Ethics approval and consent to participate
: This case study was approved by the Ethics Committee of Osaka Medical College.
: Written informed consent was obtained from the patient’s parent for publication of this case report and any accompanying images. A copy of the written consent is available for review by the Editor of this journal.
: The authors have no conflicts of interest to report.