Skip Navigation LinksHome > February 2014 - Volume 123 - Issue 2, PART 2 > Ectopic Pregnancy Developing in a Cyst of the Canal of Nuck
Obstetrics & Gynecology:
doi: 10.1097/AOG.0000000000000099
Case Report

Ectopic Pregnancy Developing in a Cyst of the Canal of Nuck

Noguchi, Daito MD; Matsumoto, Naoki MD, PhD; Kamata, Shigeyuki MD; Kaneko, Kou MD, PhD

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Abstract

BACKGROUND: A cyst of the canal of Nuck is a rare cause of inguinal swelling in adult women. Ectopic pregnancies that implant to rare regions are sometimes challenging to diagnose.

CASE: A 45-year-old woman presented with painful swelling in her right groin with a positive urine pregnancy test. Ultrasonography, magnetic resonance imaging, and the histopathologic result of dilation and curettage suggested ectopic pregnancy in the right inguinal canal. Exploratory laparotomy, extraction of the right inguinal mass lesion, and closure of the deep inguinal ring were performed. The mass lesion measured 4×3 cm, and the histopathologic finding revealed an unusual ectopic pregnancy in the cyst of the canal of Nuck.

CONCLUSION: In women of reproductive age presenting with painful swelling of the groin, ectopic pregnancy in a cyst of the canal of Nuck should be ruled out.

© 2014 by The American College of Obstetricians and Gynecologists.

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