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Related Concept Videos

Ovarian Cycle01:27

Ovarian Cycle

The menstrual cycle includes a critical component known as the ovarian cycle, which undergoes two main phases each month—the follicular phase and the luteal phase. The follicular phase is variable and averaging around 14 days. Ovulation, triggered by a surge in luteinizing hormone (LH), marks the transition between the two phases. The second phase, the luteal phase, is relatively consistent, lasting approximately 14 days, and is marked by the activity of the corpus luteum. While a cycle length...
Cleavage and Blastulation01:33

Cleavage and Blastulation

After a large-single-celled zygote is produced via fertilization, the process of cleavage occurs while zygotes travel through the uterine tube. Cleavage is a mitotic cell division that does not result in growth. With each round of successive cell division, daughter cells get increasingly smaller.
Uterus and Cervix01:18

Uterus and Cervix

The uterus, commonly called the womb, is a vital reproductive organ in females designed to provide a nurturing environment for the implantation and growth of an embryo. It is shaped like a hollow pear and positioned between the urinary bladder and the rectum. The uterus's structure allows it to support and protect a developing fetus throughout pregnancy.
The uterus is securely anchored within the pelvic cavity by paired broad ligaments on either side. It is further stabilized by three pairs of...
Uterine Tubes01:16

Uterine Tubes

The uterine or fallopian tubes function as the conduit through which oocytes travel from the ovaries to the uterus. Each fallopian tube measures approximately 10 to 13 cm long and is anatomically divided into the infundibulum, ampulla, isthmus, and interstitial part (or intramural segment). The infundibulum is characterized by its funnel shape and features extensions called fimbriae which reach towards the peritoneal cavity. These fimbriae play a critical role during ovulation as they extend...
In Vitro Fertilization01:24

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Related Experiment Video

Updated: Jun 26, 2026

Is My Mouse Pregnant? High-Frequency Ultrasound Assessment
02:39

Is My Mouse Pregnant? High-Frequency Ultrasound Assessment

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
Summary
This summary is machine-generated.

A chorionic bump, an uncommon first-trimester finding, was observed with a tubal ectopic pregnancy. This case suggests chorionic bumps may represent small hematomas, impacting early pregnancy prognosis.

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Area of Science:

  • Reproductive Medicine
  • Obstetrics
  • Medical Imaging

Background:

  • The chorionic bump is an uncommon abnormality of the first-trimester gestational sac.
  • It presents as a bulge on the choriodecidual surface and is associated with a poor prognosis for early pregnancy.
  • The exact nature and etiology of chorionic bumps remain under investigation.

Observation:

  • This report details a unique case of a 42-year-old female.
  • Transvaginal sonography revealed a chorionic bump within the gestational sac.
  • This finding was unexpectedly associated with a spontaneous tubal ectopic pregnancy.

Findings:

  • The study presents a previously unreported association between a chorionic bump and tubal ectopic pregnancy.
  • This observation supports the hypothesis that a chorionic bump may represent a small hematoma.
  • The hematoma bulges into the gestational sac, potentially affecting pregnancy outcomes.

Implications:

  • This case expands the known clinical associations of chorionic bumps.
  • Understanding chorionic bumps as potential hematomas may refine early pregnancy assessment.
  • Further research is needed to confirm the pathophysiology and prognostic significance of chorionic bumps in various pregnancy complications.