Received: 18 May 2020
Accepted: 10 July 2020
First Online: 18 July 2020
Ethics approval and consent to participate
: The need for ethical approval for this paper was waived by the committee of Jichi Medical University Hospital.
: Written informed consent was obtained from the patient for publication of this case report and accompanying images.
: All authors declare no conflicts of interest regarding the publication of this paper.