Funding for this research was provided by:
Received: 12 August 2020
Accepted: 29 December 2020
First Online: 12 January 2021
Ethics approval and consent to participate
: The Ethics committee at the medical board of Heinrich Heine University has approved the retrospective investigation of patients’ medical records (reference number 2019-491). All patients had given written consent and approved their clinical history for the purpose of research and publication. The data could be accessed within Department O&G of UHD only.
: This publication follows the ethical guideline in the declaration of Helsinki.
: All patients were diagnosed with primary vulvar squamous cell carcinoma at the department of O&G, UHD between 2002 and 2018. The data cannot be shared publicly in according to data protection act (Datenschutzgesetz) of German regulation.
: The authors declare that there is no conflict of interest regarding the publication of this article.