Received: 11 October 2018
Accepted: 26 March 2019
First Online: 15 April 2019
Ethics approval and consent to participate
: Verbal consent from the owner was obtained for performing cytological and histopathological procedures. The present case report does not include experimental data and all data collected in this study were generated as part of the diagnostic work-up of the patient. This case report was reviewed and approved by the Institutional Animal Care and Use Committee of Kangwon National University (KW-190320-1).
: Not applicable.
: The author declares that she has no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.