Received: 11 May 2018
Accepted: 23 August 2018
First Online: 3 September 2018
Ethics approval and consent to participate
: This report was approved by the Ethics Committee of Maruyama Memorial General Hospital (No. 2017–2).
: Written informed consent was obtained from the patient for publication of this case report and any accompanying images.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.