Received: 23 October 2020
Accepted: 23 May 2021
First Online: 3 June 2021
: Both patients in the presented cases were satisfied with explanations of their treatment before surgery and the postoperative course and test results.
: Written consent was obtained from the patients for the publication of these case reports. The Clinical Ethics Committee of Juntendo University Hospital approved this study (JHS20-019), which was conducted in accordance with the principles of the Helsinki Declaration.
: Written consent was obtained from the patients for the publication of their personal information in this article.
: The authors declare that they have no competing interests.