Atrophy of the endometrium is often a physiological postmenopausal phenomenon where it is more specifically termed postmenopausal endometrial atrophy.
While most patients are asymptomatic, it is one of the commonest cause of postmenopausal bleeding, accounting for approximately 60-75% of cases 1).
Often the atrophic endometrium is associated with cystic dilatation of glands where it is then termed endometrial cystic atrophy 4.
Other factors that can cause endometrial atrophy include
- prolonged oral contraception
- hypo-oestrogenic state: ovarian dysfunction
- Tamoxifen use
Tthe endometrial thickness should measure:
- <4-5 mm on a transvaginal ultrasound scan
The uterine body to cervix ratio will also tend to decrease and may approach 1:1.
May again demonstrate a decrease in endometrial thickness similar to that observed with ultrasound. The junctional zone may no longer be evident.
- 1. Nalaboff KM, Pellerito JS, Ben-levi E. Imaging the endometrium: disease and normal variants. Radiographics. 21 (6): 1409-24. Radiographics (full text) - Pubmed citation
- 2. Ferrazzi E, Torri V, Trio D et-al. Sonographic endometrial thickness: a useful test to predict atrophy in patients with postmenopausal bleeding. An Italian multicenter study. Ultrasound Obstet Gynecol. 1996;7 (5): 315-21. doi:10.1046/j.1469-0705.1996.07050315.x - Pubmed citation
- 3. Dubinsky TJ. Value of sonography in the diagnosis of abnormal vaginal bleeding. J Clin Ultrasound. 2004;32 (7): 348-53. doi:10.1002/jcu.20049 - Pubmed citation
- 4. Atri M, Nazarnia S, Aldis AE et-al. Transvaginal US appearance of endometrial abnormalities. Radiographics. 1994;14 (3): 483-92. Radiographics (abstract) - Pubmed citation