Cited by 215Endometriosis Research and TreatmentUterine Myomas and TreatmentsGynecological conditions and treatments

Uterine junctional zone, function and disease

Brosens, J.J., de Souza, N.M., Barker, F.G.·1995·The Lancet

Abstract

The myometrium is usually thought of as a homogeneous mass of smooth muscle fibres. However, magnetic resonance studies of the uterus have revealed two distinct zones--the subendometrial myometrium or junctional zone and the outer myometrium. The junctional zone is not only structurally but also functionally different from the outer myometrium. For instance, myometrial contractions in a non-pregnant woman originate exclusively from the junctional zone, and their amplitude, frequency, and direction depend on the phase of the cycle. Irregular thickening of the junctional zone has been proposed as the magnetic resonance criterion for the diagnosis of diffuse adenomyosis. However, this magnetic resonance appearance relies on the disruption of the inner myometrial architecture secondary to smooth muscle hyperplasia but does not provide proof of mucosal invasion of the myometrium. We postulate that adenomyosis is a dichotomous disease characterised primarily by disruption of the inner myometrial architecture and function, with secondary infiltration of endometrial elements into the myometrium under certain circumstances. This hypothesis focuses on the inner myometrium and may explain the high incidence of superficial adenomyosis in dysfunctional uterine bleeding.

Integrity signals

Registry

Crossref · 10.1016/s0140-6736(95)91387-4

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23 of 23 references verified0 citation errors · 0 not checkable

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  • JZ thickening does not provide proof of mucosal invasion of the myometrium.

    “However, the JZ thickening, in and of itself, does not provide proof of mucosal invasion of the myometrium [37].”

    From The Pathogenesis of Adenomyosis vis-à-vis Endometriosis (2020) · cites this paper as [37]

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Authors
Brosens, J. J., de Souza, N. M., & Barker, F. G.
Affiliations
Hammersmith Hospital (GB)
Venue
The Lancet
Publisher
Elsevier BV
Published
1995-08
Volume
346
Issue
8974
Pages
558-560
ISSN
  • 0099-5355 (ISSN-L)
  • 0140-6736
OpenAlex
W2064443334
Cited by
215
References
23
Citations by year
2026: 2 · 2025: 8 · 2024: 11 · 2023: 9 · 2022: 10 · 2021: 12 · 2020: 10 · 2019: 7 · 2018: 11 · 2017: 6 · 2016: 6 · 2015: 11 · 2014: 12 · 2013: 2 · 2012: 5
FWCI
4.55
Type
journal article
Language
en
Open access
closed
Locations
  • The Lancet (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Endometriosis Research and Treatment
  • Health Sciences › Medicine › Obstetrics and Gynecology › Uterine Myomas and Treatments
  • Health Sciences › Medicine › Obstetrics and Gynecology › Gynecological conditions and treatments
Keywords
myometrium, diffuse adenomyosis, myometrial contraction, menstrual cycle, smooth muscle hyperplasia, dysfunctional uterine bleeding
MeSH terms
Endometriosis, Endometrium, Female, Humans, Magnetic Resonance Imaging, Menstrual Cycle, Myometrium, Uterine Contraction, Uterine Diseases, Uterine Hemorrhage

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