Text and Data Mining valid from 2020-01-15
Received: 7 October 2019
Accepted: 31 December 2019
First Online: 15 January 2020
Ethics approval and consent to participate
: The Ethics Committees of Chiba University, Graduate School of Medicine approved the content of this manuscript (#3032), and the patient provided written informed consent before surgery.
: Written informed consent was obtained from the patient for the publication of this case report and any accompanying images.
: The authors declare that they have no competing interests.