Received: 9 September 2020
Accepted: 17 December 2020
First Online: 6 January 2021
Ethics approval and consent to participate
: The Ethics Committees of Chiba University approved the content of this manuscript (#2732), and written informed consent was obtained from the patient before surgery.
: Written informed consent was obtained from the patient for publication of this case report and any accompanying images.
: The authors declare no conflict of interest associated with this manuscript.