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Article History

Received: 6 December 2018

Accepted: 25 February 2019

First Online: 26 April 2019

Ethics approval and consent to participate

: All procedures performed involving human participants were in accordance with the ethical standards of the institutional review board of Yamagata Prefectural Central Hospital and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

: Written informed consent was obtained from the patient for publication of this case report and any accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.

: The authors declare that they have no competing interests.

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