Received: 12 July 2020
Accepted: 14 September 2020
First Online: 7 October 2020
Ethics approval and consent to participate
: The patient provided written informed consent to participate in this case report, which was approved by the Ethics Committee of Gunma University Hospital.
: Written informed consent was obtained from the patient for publication of this case report and any accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.
: The authors declare that they have no competing interests.