Received: 4 October 2018
Accepted: 6 June 2019
First Online: 12 June 2019
Ethics approval and consent to participate
: This case report involves a patient. The case report complies with the Helsinki Declaration, and approval was obtained from the ethics committee of the University of Yamanashi, Faculty of Medicine.
: Written informed consent was obtained from the patient for publication of this case report including the pedigree diagram and any other associated images.
: The authors declare that they are no competing interests.