Published: 2018-08-27

Pregnancy in a uterine anomaly: a case report

Siti Nur Dina Ahmad Khairuddin, Iza Emilia Ibrahim Mohamed, Roziana Ramli


Pregnancy in rudimentary horn of the uterus is a rare clinical condition and often misdiagnosed as tubal, cornual, abdominal and even intrauterine pregnancy. Surgical excision of the horn is the definitive treatment for this condition. A healthy primigravida at 11 weeks gestation with underlying corrected Tetralogy of Fallot was seen with ultrasound findings suggestive of ectopic pregnancy. She underwent laparotomy and intraoperative finding was unruptured right non-communicating rudimentary horn pregnancy which was surgically excised. This case highlights the importance of having this rare diagnosis as one of the differential diagnosis for ectopic pregnancy.


Rudimentary horn, Surgical excision, Tetralogy of Fallot

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Kanagal DV, Hamumanalu LC. Ruptured rudimentary horn pregnancy at 25weeks with previous vaginal delivery: a case report. Case Rep Obstet Gynecol. 2012:985076.

Hassan CH, Karim AK, Ismail NA, Omar MH. Case report of ruptured non-communicating right rudimentary horn pregnancy: an acute emergency. Acta Medica. 2011 Jan 1;54(3):125-6.

Elsayegh A, Nwosu EC. Rupture of pregnancy in the communicating rudimentary uterine horn at 34 weeks. Human Reprod (Oxford, England). 1998 Dec 1;13(12):3566-8.

Latto D, Norman R. Pregnancy in Rudimentary Horn of Bicornuate Uterus. BMJ. 1950 Oct 21;2(4685):926.

Jena L, Satapathy RN, Swain S, Mahapatra PC. Ruptured rudimentary horn pregnancy of unicornuate uterus: a case report. Int J Reprod Contracep Obstet Gynecol. 2017 Feb;4(1):259-62.

Tsafrir A, Rojansky N, Sela HY, Gomori JM, Nadjari M. Rudimentary horn pregnancy: first trimester prerupture sonographic diagnosis and confirmation by magnetic resonance imaging. J Ultrasound Med. 2005;24(2):219-23.

Ali MK, Shazly SA, Abdelbadee AY, Ali AH. A 32-weeks twins in a non-communicating rudimentary horn: Case report. Middle East Fertil Soc J. 2012;17:290-2.

Jain R, Gami N, Puri M, Trivedi S. A rare case of intact rudimentary horn pregnancy presenting as hemoperitoneum. J Human Reprod Sci. 2010;3(2):113-5.

Bahadori F, Borna S, Behroozlak T, Hoseini S, Ayatollahi H. Failed induction in second trimester due to pregnancy in an uncommunicated rudimentary horn: case report. J Family Reprod Health. 2009;3(3):95-7.

Ambusaidi Q, Jha C. Pregnancy in the Rudimentary Uterine Horn: Case report of an unusual presentation. Sultan Qaboos University Med J. 2014;14(1):134-8.

Rath TS, Tripathy SR, Rout S, Mishra J. The unchartered waters of obstetrics-rupture of noncommunicating rudimentary horn pregnancy (Rnhp) in a Bicornuate Uterus. Gynecol Obstet (Sunnyvale). 2016;6(347):2161-0932.

Henriet E, Roman H, Zanati J, Lebreton B, Sabourin JC, Loic M. Pregnant noncommunicating rudimentary uterine horn with placenta percreta. JSLS. 2008;12(1):101-3.

Moawad GN, Abi Khalil ED. A case of recurrent rudimentary horn ectopic pregnancies managed by methotrexate therapy and laparoscopic excision of the rudimentary horn. Case Rep Obstet Gynecol. 2016; 5747524

Arab M, Mehdighalb S, Khosravi D. Functional rudimentary horn as a rare cause of pelvic pain: a case report. Iranian Red Crescent Med J. 2014;16(11):e19351.

Sönmezer M, Taskin S, Atabekogğlu C, Güngör M, Ünlü C. Laparoscopic management of rudimentary uterine horn pregnancy: case report and literature review. JSLS. 2006 Jul;10(3):396.

Park JK, Dominguez CE. Combined medical and surgical management of rudimentary uterine horn pregnancy. JSLS. 2007;11(1):119-22.