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Related Experiment Video

Updated: Jul 6, 2026

An Ex Vivo Model of Ovarian Cancer Peritoneal Metastasis Using Human Omentum

An Ex Vivo Model of Ovarian Cancer Peritoneal Metastasis Using Human Omentum

Published on: January 26, 2024

Primary omental pregnancy.

Recep Yildizhan¹, Mertihan Kurdoglu, Ali Kolusari

¹Department of Obstetrics and Gynecology, Yuzuncu Yil University, Van, Turkey. recepyildizhan@yahoo.com

Saudi Medical Journal

|April 3, 2008

Summary

Primary omental pregnancy, a rare ectopic pregnancy, can cause severe hemoperitoneum. This case highlights its consideration in acute abdominal pain with intact adnexa.

Area of Science:

Reproductive Medicine
Surgical Gynecology

Background:

Ectopic pregnancies typically occur in the fallopian tubes.
Omental pregnancy is an exceptionally rare variant, often secondary to tubal implantation.
Primary omental pregnancy, without a preceding tubal event, is exceedingly uncommon.

Observation:

A 25-year-old woman presented with acute abdominal pain, distention, and anemia, mimicking a ruptured ectopic pregnancy.
Laparotomy revealed hemoperitoneum, but bilateral tubes and ovaries were anatomically intact.
The source of bleeding was identified as an omental pregnancy at 12 weeks gestation.

Findings:

The diagnosis of primary omental pregnancy was confirmed based on Studdiford's criteria.
Histological examination revealed neovascularization within the omental tissue, supporting the diagnosis.

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Surgical management involved partial omentectomy.

Implications:

This case underscores the importance of considering primary omental pregnancy in the differential diagnosis of acute abdomen with hemoperitoneum.
Even with intact adnexa, omental pregnancy should be suspected, particularly in reproductive-aged women.
Early recognition and surgical intervention are crucial for managing this rare but potentially life-threatening condition.