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Updated: Jun 24, 2026

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Isolation of Primary Human Decidual Cells from the Fetal Membranes of Term Placentae
Published on: April 30, 2018
Pregnancy-associated ectopic decidua of the appendix
1Department of general surgery, AZ Sint-Jan Hospital, Brugge, Belgium. janlesaffer@hotmail.com
Acta Chirurgica Belgica
|April 4, 2009
Summary
Ectopic decidual transformation, a condition where decidua forms outside the uterus, is usually asymptomatic. However, it can rarely cause right iliac fossa pain and mimic acute appendicitis.
Area of Science:
- Reproductive Endocrinology
- Gastrointestinal Pathology
Background:
- Ectopic decidual transformation is a recognized condition.
- It most commonly affects the ovary and cervix.
- It can also occur on the serosal surfaces of abdominal and pelvic organs.
Observation:
- This phenomenon is typically asymptomatic.
- A rare presentation involves right iliac fossa pain.
- It can clinically mimic acute appendicitis.
Findings:
- Ectopic decidua on abdominal or pelvic serosal surfaces is uncommon.
- When symptomatic, it can present as localized abdominal pain.
- Differential diagnosis for acute abdominal pain should consider this entity.
Implications:
- Awareness of ectopic decidua is crucial for accurate diagnosis.
- It highlights the importance of considering rare causes of abdominal pain.
- Further research may elucidate the mechanisms and clinical significance of symptomatic ectopic decidua.
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