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Article History

First Online: 27 August 2018

Compliance with Ethical Standards

:

: No sources of funding were used to assist in the preparation of this case report.

: Naruaki Imoto, Miho Hatanaka, Osamu Nomura, Makoto Hiki, Shin Watanabe, and Naoyuki Hashiguchi have no conflicts of interest that are directly relevant to the contents of this case report.

: This case report was approved by the Ethics Committee of Juntendo University Hospital. All patient data were de-identified.

: Written informed consent was obtained from the patient for publication of this case report. A copy of the written consent may be requested for review from the corresponding author.

: The datasets generated and analyzed during the current case report are not publicly available because of the protection of individual privacy, but are available from the corresponding author on reasonable request.