Hormonal pathology of the endometrium
1Department of Pathology, The Mount Sinai-NYU Medical Center, New York, New York 10029, USA.
Summary
This review details how various hormone therapies impact endometrial tissue histology. It covers oral contraceptives, hormone replacement, and cancer treatments, highlighting diverse cellular and structural changes.
Area of Science:
- Gynecologic pathology
- Endocrinology
- Histology
Background:
- The endometrium is highly responsive to steroid sex hormones, exhibiting rapid structural modifications.
- Understanding these hormonal effects is crucial for interpreting endometrial biopsies.
Purpose of the Study:
- To review the histologic patterns of the endometrium under various hormone therapies.
- To correlate hormonal treatments with specific endometrial changes.
Main Methods:
- Review of histologic findings associated with common hormone therapies.
- Discussion of endogenous hormonal effects and their endometrial manifestations.
Main Results:
- Oral contraceptives induce progestational effects, leading to glandular arrest and stromal changes, progressing to atrophy with prolonged use.
- Ovulation induction accelerates stromal maturation, sometimes causing discrepancies with glandular development.
- Hormone replacement therapy (HRT) with estrogen alone can cause proliferation and hyperplasia; combined HRT elicits varied patterns including hyperplasia and metaplasia.
- Antitumoral therapies like progesterone induce secretory changes and arrest proliferation, while Lupron causes atrophy. Tamoxifen can lead to polyps and hyperplasia.
Conclusions:
- Hormone therapies induce distinct and diverse endometrial histologic patterns.
- Recognizing these patterns is essential for accurate diagnosis and patient management in gynecologic and endocrine practice.
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