The chorionic bump: Radiologic and pathologic correlation

Tan, Sinan; İpek, Ali; Sivaslıoğlu, Ahmet Akın; Süngü, Nuran; Sarıcı, Özlem Ünal; Karaoğlanoğlu, Mustafa

doi:10.1002/jcu.20755

Cited by 21 publications

(28 citation statements)

References 11 publications

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“…The “chorionic bump” was first described in 2006 by Harris et al as “an irregular, convex bulge from the choriodecidual surface into the first trimester gestational sac.” The prevalence of chorionic bumps appears to be between 1.5 and 7 per 1000 pregnancies, although data are limited. The aetiology of the chorionic bump is uncertain; however, the evolution of the radiological features on ultrasonography and magnetic resonance imaging has suggested they are likely haematomas and there is some histopathological evidence to support this . Harris et al also postulated that the chorionic bump may represent a resorbing blighted pregnancy; however, there is at present, no evidence for this theory.…”

Section: Introductionmentioning

confidence: 72%

“…This differs from what has been previously reported for the histopathology of the chorionic bump and the current hypothesis that they are haemorrhagic lesions. In 2010, Tan et al reported a case study of a pregnancy with three chorionic bumps that demised at 6 weeks gestation. Histopathological examination of the abortus reported haematoma remnants, and this concurred with the appearances of their serial ultrasonographic findings, which also suggested that the lesion was a haematoma.…”

Section: Discussionmentioning

confidence: 99%

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A bump inside the bump: a case report of a chorionic bump

et al. 2018

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Section: Introductionmentioning

confidence: 72%

Section: Discussionmentioning

confidence: 99%

A bump inside the bump: a case report of a chorionic bump

et al. 2018

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“…This is true for the general population as well as for patients with a history of infertility treatment. A computerized search of the Pubmed/MEDLINE database using the term “chorionic bump” revealed six larger series describing between eight to 57 cases and eight isolated reports describing one or two cases. Our report adds an additional 23 cases, for a total of 190 cases reported in the English literature.…”

Section: Discussionmentioning

confidence: 99%

Chorionic bump at 11 to 13 weeks' gestation: Prevalence and clinical significance

Sepúlveda¹

2019

Prenatal Diagnosis

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Objective To gather additional data on pregnancy outcome when a chorionic bump is detected at the time of the 11‐ to 13‐week scan. Methods The presence of a chorionic bump was prospectively recorded in a database of women presenting for their first‐trimester sonographic screening. Clinically relevant information was obtained by reviewing ultrasound reports and medical records or contacting the referring obstetrician or the parents themselves. Results During a 4.5‐year study period from June 2014 to December 2018, a chorionic bump was identified in 23 out of 3375 pregnancies, for a prevalence of 1/147 or 0.7%. All women were asymptomatic at the time of evaluation. The chorionic bump was single in 21 (91%) cases, located in the central part of the placenta in 17 (74%) cases, and the median largest diameter was 20 mm (range, 10‐43). Although the placenta was low‐lying in 14 (61%) cases, all but one patient had a normally located placenta at the midtrimester anatomy scan. With the exception of one pregnancy complicated with trisomy 21, the outcome was universally good. Conclusion Our experience suggests that a chorionic bump detected during the 11‐ to 13‐week scan is usually a transient, is incidental finding, and probably has no clinical significance.

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“…Despite the fact that the chorionic bump pathophysiology is still unknown, we hypothesized that this localized haemorrhage at the chorion frondosum could be related with a defective placentation, therefore causing increased resistance in primary villous. Tan et al [11] reported a case of a spontaneous abortion at 6-weeks of pregnancy with the presence of 3 chorionic bumps at first trimester ultrasound. The histologic analysis revealed extensive regions of haemorrhage between the decidua and cyto-syncytiotrophoblasts in chorionic bump areas.…”

Section: Discussionmentioning

confidence: 99%

Chorionic Bump: An Early Ultrasound Marker for Adverse Obstetric Outcome

Silva

Sepúlveda‐Martínez

Guiñez

et al. 2018

Gynecol Obstet Invest

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Backgrounds/Aims: To assess the perinatal outcome of pregnancies with chorionic bump detected at the first trimester of pregnancy. Methods: This was a nested case-control study of pregnancies with chorionic bump identified at the first trimester ultrasound that was performed from October 2014 and October 2016. The control group consisted of the following 5 unaffected pregnancies after each case. From the first trimester ultrasound, maternal and perinatal characteristics were obtained and stored in a dedicated database. The primary outcome was defined as the presence of an alive new-born. Secondary outcome was defined as the presence of a composite adverse obstetric outcome. Results: Eleven first trimester pregnancies affected by a chorionic bump and 55 controls were identified. The primary outcome was observed in 72.7 and 89.1% of chorionic bump and controls respectively (p = 0.2). The secondary outcome was observed in 45.5% of pregnancies with a chorionic bump versus 12.7% in the unaffected group (p = 0.01). First trimester uterine artery Doppler demonstrated a non-significant trend to be higher in the chorionic bump group. Conclusions: The presence of a chorionic bump is associated with a significant higher risk of adverse perinatal outcome.

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The chorionic bump: Radiologic and pathologic correlation

Cited by 21 publications

References 11 publications

A bump inside the bump: a case report of a chorionic bump

A bump inside the bump: a case report of a chorionic bump

Chorionic bump at 11 to 13 weeks' gestation: Prevalence and clinical significance

Chorionic Bump: An Early Ultrasound Marker for Adverse Obstetric Outcome

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