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Updated: Mar 9, 2026

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Primary omental pregnancy.

Swee Lin Yip1,2, Wei Keat Tan2, Lay Kok Tan3

  • 1Department of Obstetrics and Gynaecology, KK Women's and Children's Hospital, Singapore, Singapore.

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|December 23, 2016
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Summary

A rare case of primary omental ectopic pregnancy was found during surgery in a 31-year-old woman. Careful abdominal inspection is crucial for diagnosing ectopic pregnancies when tubes and ovaries appear normal.

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Area of Science:

  • Reproductive Medicine
  • Surgical Gynecology

Background:

  • Ectopic pregnancy typically occurs in the fallopian tubes.
  • Omental pregnancy is an extremely rare variant, posing diagnostic challenges.

Observation:

  • A 31-year-old woman presented for diagnostic laparoscopy.
  • Initial surgical exploration revealed normal fallopian tubes and ovaries.

Findings:

  • A primary omental ectopic pregnancy was discovered intraoperatively.
  • The omental ectopic pregnancy was successfully removed via mini-laparotomy.

Implications:

  • Highlights the importance of thorough abdominal cavity inspection during laparoscopy for suspected ectopic pregnancy.
  • Emphasizes considering rare ectopic pregnancy locations, such as the omentum, even with normal adnexa.
  • Underscores the need for vigilance in surgical diagnosis of ectopic gestation.