Received: 29 June 2020
Accepted: 16 September 2020
First Online: 23 September 2020
Ethics approval and consent to participate
: This study was conducted retrospectively in accordance with the Declaration of Helsinki and with the approval of the Ethics Committee of Jikei University School of Medicine (approval no. 30–150 (9171)). All patients provided written informed consent for publication of the report and images. We have no conflicts of interest to declare.
: Not applicable.
: The authors declare that they have no competing interests.