Received: 20 June 2019
Accepted: 16 August 2019
First Online: 22 October 2019
Ethics approval and consent to participate
: This retrospective study was approved by the Institutional Review Board of Teikyo University and we provided one representative case of MT with obtaining written informed consent. The study registry number, registry name, and registration date are 18-233, Clinical outcomes and carcinogenic risk of ovarian endometriomas: a retrospective analysis, and 20 March 2019, respectively.
: Written informed consent was obtained from four representative patients, including in Table 1, for publication of all images. The retrospective analysis of 185 patients was approved by the Human Ethical Committee of the University of Teikyo Hospital (Trial registration number: 18-233). A copy of the written consent form is available for review by the Editor-in-Chief of this journal.
: The authors declare that they have no competing interests.