Chorionic bump

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Chorionic bump
Other nameschorionic bulge
Cureus-0012-00000011480-i01.jpg
Specialty Obstetrics
Usual onsetDuring pregnancy
Risk factors Use of assisted reproductive technology
Prognosis Higher rate of miscarriage
Frequency1.5-7 per 1,000 pregnancies

Chorionic bump is a rare medical condition defined as an irregular, convex bulge or protrusion from the choriodecidual surface into the gestational sac. [1] [2] It is medically defined as a separate entity from a chorionic hematoma. [3]

Contents

Identification of a chorionic bump in early first trimester pregnancy represents a significant risk factor for pregnancy loss, given a live birth rate of less than 50%. [4] The incidence rate for chorionic bump is estimated to be between 1.5 and 7 per 1000 pregnancies. [3]

Cause and diagnosis

It is believed that chorionic bump can start as a hematoma in the intervillous space. [5] Additionally, Infertility treatments may be associated with increased likelihood of chorionic bump. [4]

Prognosis and treatment

Existing literature suggests that chorionic bump causes first trimester pregnancy loss and doubles the miscarriage rate as compared to having no risk factors. [4]

References

  1. ↑ Yousaf, Amman; Tayyab, Ahmad; Anil, Muhammad Sana Ullah; Ahmed, Mohamed Mohamed Helmi; et al. (2020-11-14). "Chorionic Bump: Radiologic Features and Pregnancy Outcomes". Cureus. 12 (11) e11480. doi: 10.7759/cureus.11480 . ISSN   2168-8184. PMC   7735167 . PMID   33329976.
  2. ↑ Liu, Emily; Noor, Abdul; Pereira, Nigel (2024-07-01). "Chorionic Bump: An Early Marker for Miscarriage and Embryonic Aneuploidy?" . Journal of Obstetrics and Gynaecology Canada. 46 (7). doi:10.1016/j.jogc.2024.102576. ISSN   1701-2163. PMID   38852808.
  3. 1 2 Sana, Y.; Appiah, A.; Davison, A.; Nicolaides, K. H.; et al. (2013). "Clinical significance of first-trimester chorionic bumps: a matched case–control study". Ultrasound in Obstetrics & Gynecology. 42 (5): 585–589. doi:10.1002/uog.12528. ISSN   1469-0705. PMID   23733598.
  4. 1 2 3 Harris, Robert D.; Couto, Corey; Karpovsky, Clara; Porter, Misty M. Blanchette; et al. (2006). "The Chorionic Bump" . Journal of Ultrasound in Medicine. 25 (6): 757–763. doi:10.7863/jum.2006.25.6.757. ISSN   1550-9613. PMID   16731892.
  5. ↑ Younesi, Ladan; Shahnazari, Razieh (2017-12-01). "Chorionic Bump in First-trimester Sonography". Journal of Medical Ultrasound. 25 (4): 221–226. doi:10.1016/j.jmu.2017.04.004. ISSN   0929-6441. PMC   6029338 . PMID   30065496.


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