Jun Miyazaki, Hideyuki Hayashi, Yuta Torii, Aoi Hamano, Toshiaki Toyota, and Yutaka Furukawa declare no conflicts of interest.

All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1964 and later versions. Informed consent for the submission and publication of this case report was obtained from the patient.