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Related Concept Videos

Disorders of the Female Reproductive System01:24

Disorders of the Female Reproductive System

The female reproductive system can be affected by several disorders, including Premenstrual Syndrome (PMS), Premenstrual Dysphoric Disorder (PMDD), endometriosis, and various forms of cancer. PMS and PMDD are cyclical conditions that cause physical and emotional distress, with symptoms that include edema, mood swings, and food cravings. PMDD is a more severe form of PMS characterized by increased symptom severity that peaks during the luteal phase and tends to improve or resolve shortly after...
Oogenesis02:07

Oogenesis

In human women, oogenesis produces one mature egg cell or ovum for every precursor cell that enters meiosis. This process differs in two unique ways from the equivalent procedure of spermatogenesis in males. First, meiotic divisions during oogenesis are asymmetric, meaning that a large oocyte (containing most of the cytoplasm) and minor polar body are produced as a result of meiosis I, and again following meiosis II. Since only oocytes will go on to form embryos if fertilized, this unequal...
Menopause01:28

Menopause

Menopause, a natural biological process marking the end of a woman's fertility, typically occurs between the fifth and sixth decade of life. This phase is characterized by the exhaustion of the ovarian follicle pool, leading to less responsive ovaries despite the high levels of Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH). The consequential decrease in estrogen production results in symptoms like hot flashes, heavy sweating, headaches, hair loss, muscle pains, vaginal...
The Menstrual Cycle01:19

The Menstrual Cycle

The menstrual cycle is a recurrent sequence of changes in the uterine endometrium, specifically its functional layer, the stratum functionalis. This cycle prepares the uterus for potential pregnancy. This cycle typically spans 21–35 days, averaging 28 days, and aligns with the ovarian cycle, regulated by fluctuating levels of ovarian hormones, primarily estrogen and progesterone.
The menstrual phase occurs from days 1 to 5 and involves the shedding of the stratum functionalis, as a uterine...
Hormonal Regulation of the Menstrual Cycle01:22

Hormonal Regulation of the Menstrual Cycle

The ovarian cycle regulates endometrial changes throughout a single menstrual cycle via the coordinated action of gonadotrophin-releasing hormone (GnRH) and gonadotrophins.
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH release.
Proliferative Phase01:20

Proliferative Phase

The proliferative phase typically occurs after menstruation and lasts between 6 to 13 days in a standard 28-day cycle. This phase involves the reconstruction of the endometrium, guided by estrogen produced by the developing ovarian follicle.
Notably, the stratum basale, the basal layer of the endometrium, including the basal parts of the uterine glands, remains unaffected by menstruation. Stem cells in this layer undergo mitosis, regenerating the stratum functionalis and thickening the...

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Related Experiment Video

Updated: Jul 11, 2026

Intraoperative Detection of Subtle Endometriosis: A Novel Paradigm for Detection and Treatment of Pelvic Pain Associated with the Loss of Peritoneal Integrity
07:20

Intraoperative Detection of Subtle Endometriosis: A Novel Paradigm for Detection and Treatment of Pelvic Pain Associated with the Loss of Peritoneal Integrity

Published on: December 21, 2012

Postmenopausal endometriosis.

Dorthe Oxholm1, Ulla Breth Knudsen, Niels Kryger-Baggesen

  • 1Department of Gynaecology and Obstetrics, Odense University Hospital, University of Southern Denmark, Denmark. doxo@hotmail.com

Acta Obstetricia Et Gynecologica Scandinavica
|September 14, 2007
PubMed
Summary

Postmenopausal endometriosis is rare but carries risks of recurrence and malignant transformation, especially with estrogen-only hormone therapy (ET). Combined hormone therapy (HT) may offer a lower risk, suggesting careful consideration for hormone replacement therapy in postmenopausal women.

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Intraoperative Detection of Subtle Endometriosis: A Novel Paradigm for Detection and Treatment of Pelvic Pain Associated with the Loss of Peritoneal Integrity
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Establishment of an Experimental Mouse Model of Endometrioma to Study its Related Infertility
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Establishment of an Experimental Mouse Model of Endometrioma to Study its Related Infertility

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Area of Science:

  • Gynecology
  • Reproductive Endocrinology

Background:

  • Postmenopausal endometriosis is an uncommon condition.
  • Awareness is crucial due to potential recurrence and malignant transformation risks.

Purpose of the Study:

  • To review existing literature on postmenopausal endometriosis.
  • To discuss hormone therapy (HT) and malignancy risk in affected patients.

Main Methods:

  • Conducted a Medline search for postmenopausal endometriosis cases.
  • Analyzed literature regarding hormone therapy and associated risks.

Main Results:

  • Identified 32 case reports; ovaries are the most common site.
  • Estrogen stimulates endometriosis; HT, particularly estrogen-only therapy (ET), increases recurrence risk.
  • Malignant transformation risk is elevated with ET; surgery is the primary treatment, with limited data on medical options like aromatase inhibitors.

Conclusions:

  • Postmenopausal endometriosis necessitates awareness due to recurrence and malignant transformation risks.
  • Combined HT may have a lower malignant transformation risk than ET.
  • Hormone replacement therapy should be judiciously used for severe symptoms, favoring combined therapy if indicated.