Conservative treatment of atypical hyperplasia and endometrial carcinoma: immunohistochemical aspects

Pashov A.I., Sivova E.N., Volkova L.V., Rachkovskaya V.V.

1) Immanuel Kant Baltic Federal University, Kaliningrad, Russia; 2) Professor V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, Ministry of Health of Russia, Krasnoyarsk, Russia
Objective: To test the algorithms of conservative hormonal therapy using buserelin depot and levonorgestrel releasing intrauterine system in women with identified atypical endometrial hyperplasia and/or adenocarcinoma of the uterine body and unrealized fertility.
Materials and methods: The results of the treatment with hormonal drugs were retrospectively evaluated in 52 reproductive-aged patients diagnosed with atypical endometrial hyperplasia ICD-O code 8380/2 (n=40, 77.1%) and well-differentiated (grade 1) endometrioid adenocarcinoma of the uterine body ICD-O code 8380/3 (n=12, 22.9%). The expression of immunohistochemical markers, namely ER, PR, Ki-67, Bcl-2, and E-cadherin, was studied in endometrial samples before and after the treatment.
Results: A complete response to the treatment was noted in 100% of cases. The spontaneous pregnancy occurred in 22 cases (40.4%). The recurrence of the disease was not detected in the patients participating in the study for 15 years, the five-year survival rate was 100%. The study of immunohistochemical markers revealed differences in their expression in endometrial samples of the patients with atypical endometrial hyperplasia and endometrioid adenocarcinoma of the uterine body.
Conclusion: The complex use of gonadotropin-releasing hormone agonists (buserelin depot) with the subsequent insertion of levonorgestrel releasing intrauterine device is an effective method of treating atypical endometrial hyperplasia and stage IA well-differentiated endometrioid adenocarcinoma without invasion into the myometrium in reproductive-aged women with unrealized fertility.

Authors’ contributions: Pashov A.I., Volkova L.V. – developing the concept and design of the study; Sivova E.N. – collecting and processing the material; Pashov A.I., Volkova L.V., Rachkovskaya V.V. – writing the text, editing the article.
Conflicts of interest: The authors declare that there are no conflicts of interest.
Funding: The article was prepared without sponsorship.
Ethical Approval: The study was approved by the Ethical Review Board of Krasnoyarsk Regional Clinical Oncological Dispensary named after A.I. Kryzhanovsky.
Patient Consent for Publication: All patients provided informed consent for the publication of their data.
Authors' Data Sharing Statement: The data supporting the findings of this study are available on request from the corresponding author after approval from the principal investigator.
For citation: Pashov A.I., Sivova E.N., Volkova L.V., Rachkovskaya V.V. Conservative treatment
of atypical hyperplasia and endometrial carcinoma: immunohistochemical aspects.
Akusherstvo i Ginekologiya/Obstetrics and Gynecology. 2023; (4): 155-160 (in Russian)
https://dx.doi.org/10.18565/aig.2023.18

Keywords

atypical endometrial hyperplasia
well-differentiated endometrioid adenocarcinoma of the uterine body
GnRH agonists
buserelin acetate
levonorgestrel releasing intrauterine device
immunohistochemical markers

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Received 27.01.2023

Accepted 10.04.2023

About the Authors

Alexander I. Pashov, Dr. Med. Sci., Professor, Head of the Department of Obstetrics and Gynecology of the Medical Institute, Immanuel Kant Baltic Federal University, Ministry of Science and Higher Education of the Russian Federation, +7(911)461-49-98, pachov@mail.ru, https://orcid.org/0000-0001-5346-9185,
236016, Russia, Kaliningrad, Botkin str., 4/6.
Evgenia N. Sivova, PhD, Assistant at the Department of Obstetrics and Gynecology, Prof. V.F. Voyno-Yasenetsky Krasnoyarsk State Medical University,
Ministry of Health of the Russian Federation, +7(913)519-22-79, janesivova@gmail.com, 660022, Russia, Krasnoyarsk, Partizan Zheleznyak str., 1.
Larisa V. Volkova, Dr. Med. Sci., Head of the Laboratory of Immunohistochemical, Pathological Anatomical and Clinical Diagnostics, Professor at the Department of Obstetrics and Gynecology of the Medical Institute, Immanuel Kant Baltic Federal University, Ministry of Science and Higher Education of the Russian Federation, +7(921)852-20-42, volkovalr16@gmail.com, https://orcid.org/0000-0003-0938-8577, 236016, Russia, Kaliningrad, Botkin str., 4/6.
Valeriya V. Rachkovskaya, Post-graduate student of the Department of Obstetrics and Gynecology of the Medical Institute, Immanuel Kant Baltic Federal University,
Ministry of Science and Higher Education of the Russian Federation, +7(952)117-48-18, Losevavaleria2104@mail.ru, https://orcid.org/0000-0002-4221-693Х,
236016, Russia, Kaliningrad, Botkin str., 4/6.

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