File:Normal placental-myometrial interface on MRI (Radiopaedia 34664-36078 Coronal T2 SSFSE 1).jpg

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Summary:

Description
  • Radiopaedia case ID: 34664
  • Study ID: 36078
  • Image ID: 11438321
  • Plane projection: Coronal
  • Modality: MRI
  • System: Obstetrics
  • Findings: An example of the placental-myometrial interface in a second trimester fetus. This fetal evaluation was for an intrathoracic finding on ultrasound. At no point was the placenta considered abnormal and the delivery was normal. The normal gravid myometrium has three layers: In some images, the interface between the placenta and the inner myometrium may be blurred, but this is not uncommon and usually artifactual. Make sure you can see placental-myometrial abnormality in two planes before suggesting placental invasion. In this case, there is a small amount of blurring of the interface on the sagittal image, but it does not hold up on the axial image. The placenta normally has homogeneous signal intensity when <24 weeks.
  • Study findings: An example of the placental-myometrial interface in a third trimester fetus. This fetal evaluation was also for an intrathoracic finding on ultrasound. At no point was the placenta considered abnormal and the delivery was normal. In this case, the interface may be harder to see because the thin myometrial layer is pressed up against the abdominal wall, but it is still normal. Often it is useful to try to trace the outer myometrial wall and work inwards, to at least feel comfortable that placenta percreta and increta can be excluded. The placenta normally develops a more heterogeneous signal intensity when >24 weeks.
  • Author location: Philadelphia, PA, United States
Date 03 Mar 2015
Source Normal placental-myometrial interface on MRI
Author Matt A. Morgan
Permission
(Permission-reusing-text)		 http://creativecommons.org/licenses/by-nc-sa/3.0/

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Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)

This file is ineligible for copyright and therefore in the public domain, because it is a technical image created as part of a standard medical diagnostic procedure. No creative element rising above the threshold of originality was involved in its production.

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current01:39, 27 August 2021Thumbnail for version as of 01:39, 27 August 2021935 × 935 (106 KB)Fæ (talk | contribs)Radiopaedia project rID:34664 (thread B) (batch #26541-1 A1)

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