Marginal placenta previa
Citation, DOI, disclosures and article data
Citation:
Weerakkody Y, Worsley C, Yap J, et al. Marginal placenta previa. Reference article, Radiopaedia.org (Accessed on 09 Mar 2025) https://doi.org/10.53347/rID-70158
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rID:
70158
Article created:
Disclosures:
At the time the article was created Yuranga Weerakkody had no recorded disclosures.
View Yuranga Weerakkody's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Calum Worsley had no financial relationships to ineligible companies to disclose.
View Calum Worsley's current disclosures
Revisions:
6 times, by
6 contributors -
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Systems:
Synonyms:
- Marginal previa
- Marginal praevia
- Marginal placental previa
- Grade 2 placenta praevia
- Grade 2 placenta previa
Marginal placenta previa (or grade 2 placenta previa) was a term previously used to describe the situation where placental tissue reaches the margin of the internal cervical os but does not cover it.
The term is no longer recommended for use, to avoid confusion and variance in reporting 1,2. If the placental edge is within 2 cm of the os but not covering the os, it should be reported as low-lying, and if the placenta is covering the os, it should be reported as placenta previa 1,2.
Differential diagnosis
References
- 1. Reddy U, Abuhamad A, Levine D, Saade G, for the Fetal Imaging Workshop Invited Participants. Fetal Imaging. J of Ultrasound Medicine. 2014;33(5):745-57. doi:10.7863/ultra.33.5.745 - Pubmed
- 2. Jauniaux E, Alfirevic Z, Bhide A et al. Placenta Praevia and Placenta Accreta: Diagnosis and Management. BJOG. 2018;126(1):e1-e48. doi:10.1111/1471-0528.15306 - Pubmed
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