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Is My Mouse Pregnant? High-Frequency Ultrasound Assessment
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Published on: March 18, 2021

The chorionic bump in an ectopic pregnancy

Benjamin E Northrup1, Robert D Harris

  • 1Dartmouth Medical School, Hanover, NH 03755, USA.

Journal of Clinical Ultrasound : JCU
|December 24, 2008
PubMed

The chorionic bump, an irregular, convex bulge of the choriodecidual surface into the gestational sac (GS), is a recently described, uncommon abnormality of the 1st-trimester GS and is associated with a guarded prognosis for early pregnancy. The case of this 42-year-old female demonstrates a previously unreported relationship: a transvaginal sonographic finding of a chorionic bump associated with a spontaneous tubal ectopic pregnancy. This might support the hypothesis that the chorionic bump represents a small hematoma that bulges into the GS.

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