Document Type : Original Article


1 Assistant Professor of Veterinary Surgery, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran

2 Resident of Veterinary Surgery, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran

3 Resident of Veterinary radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran

4 Doctor of Veterinary Medicine, student of Faculty Veterinary Medicine, University of Tehran, Tehran, Iran


Objective: A secondary ectopic pregnancy is defined as continuing development of a fetus in the abdominal cavity after rupture of the uterine wall, which may be associated with a history of trauma. Methods: A cat was referred to the veterinary teaching hospital of the University of Tehran with history of anorexia and vaginal bleeding. In clinical examination some masses werepalpated in abdominal cavity so the patient wasreferred to radiology and sonography for definite diagnoses. In ultrasonography examination three dead fetuses were detectedoutside the uterus. In US it so appeared that gestational sacs did not cover the fetuses and there was a rupture in cranial part of right uterine horn that made the case highly suspected to ectopic pregnancy caused by trauma.  Results: Therefore the cat was prepared for aseptic surgery and anesthetized with isofulorane. After incision of the lineaalba three fetuses were seen outside the uterus that wereattached to abdominal wall (left and right wall) and mesentery. There was no sign ofgestational sac to cover the fetuses. The three fetuses were bluntly dissected from the attachments and all conspicuous vessels were ligated and the fetuses were removed. Ovariohysterectomy was also performed to prevent recurrence. Recovery was uneventful.


Main Subjects

Botcherby W.C. (1980). Ectopic pregnancy in a cow. Vet. Rec., 106: 565–566.
Bouyer J., Coste J., Fernandez H., Pouly J.L., Job-Spira N. (2002). Sites of ectopic pregnancy: a 10-year populationbased study of 1800 cases,” Hum. Reprod. 17: 3224–3230.
Clemetson L.L., Ward A.C.S. (1990). Bacterial flora of the vagina and uterus of healthy cats. J. Am. Vet. Med. Assoc. 15: 902–906.
Colhy, E.O. (1986) Pre- and Postnatal Care oJFemale Cats. 317-327. In: T.J Burke (Ed.) Smail Animal Reproduction And Fertility. Philade1phia, Lea & Febiger.
Corpa J.M. (2006). Ectopic pregnancy in animals and humans.Reprod. 131: 631-640.
De Cecco L., Capitanio G.L., Croce S. ,Forcucci M., Gerbaldo D., Rissone R. (1984). Biology of nidation and ectopic implantation.Acta Eur. Fertil. 15: 347-355.
De Nooy P.P. (1979). Extrauterine pregnancy and severe ascites in a cat. Vet. Med. Small Anim. Clin. 74: 349–350.
Dzięcioł M., Kozdrowski R., Twardoń J., Senze M. (2008). Ciążapozamaciczna u zwierząt.Medycyna Wet. 65: 635- 638.
Dzięcioł M, Niżański W, Ochota M. 2012. “Two separate cases of extrauterine pregnancy in queens,”Electronic Journal horn of Polish Agricultural Universities, 15(2).
Gosden R.G., Russell J.A. (1981). Spontaneous abdominal implantation in the rat with development to full term. Lab. Anim. 15: 379–380.
Hosgood, G. (1989) Uterine rupture with intraperitonealJoetuses in a cat. Aust Yet Practit, 19, 150- 15 i.
Hunter R.H.F. (1994). Modulation of gamete and embryonic microenvironments by oviduct glycoproteins.Molec.Reprod. Develop. 39: 176-181.
Hunter R.H.F. (1998). Have the follopian tubes a vital role in promoting fertility. Acta Obstet. Gynecol. Scand. 77:475-486.
Janowski T., Zduńczyk S., Jurczak A. (2006). Bacterial flora of the genital tract in healthy bitches during the oestrous cycle and in bitches with vaginal
discharge.Reprod. Domest. Anim. 41: (suppl. 1), 17.
Jerome C.P., Hendrickx A.G. (1982). A tubal pregnancy ina rhesus monkey (macacamulatta). Vet. Pathol. 19: 239–245.
Johnston S.D, Harish G, Stevens J.B, Scheffler H.G. 2013. “Ectopic pregnancy with uterine encapsulation in a cat,” Journal of the American Veterinary Medical Association, vol. 183, no. 9, pp.
Kriebs J.M., Fahey J.O. (2006). Ectopic pregnancy. J. Midwifery Womens Health. 51: 431-439.
Laube T. (1986). Primary and secondary extrauterine pregnancy in a cat.Tierarztl Prax14: 509-13.
Mitchell K.W. (1989). Ectopic pregnancy in a ewe. Vet. Rec. 124: 498.
Moore G.D., Eddy C.A. Pauerstein C.J. (1992). Rabbit endosalpinx inhibits implantacion in vitro. Fertil.Steril. 57: 902-907.
Nack R.A. (2000). Theriogenology question of the month - An ectopic fetus. J. Am. Vet. Med. Ass. 217: 182-184.
Nakamura Y., Muso A., Tokuyama O., Sumi T., Yamamasu S., Ishiko O., Ogita S. (2004): Primary abdominal pregnancy associated with severe ovarian
hyperstimulation syndrome. Arch. Gynecol. Obstet. 256:233-235.
Oe-Haan, J.J., Ellison, G.W., Ackerman, N. (1991) What is your diagnosis. ] Am Yet Med Assoc, 199, 1199-1200.
Olfati A., Moghaddam G., Moradi Kor N., Bakhtiari M. 2014. The Relationship between Progesterone and Biochemical Constituents of Amniotic Fluid with Placenta Traits in Iranian Crossbred Ewes (ArkharMerino×Ghezel). Asian Pacific Journal of Tropical Medicine. 7 (Suppl 1): 162-166.
Palmer, N.E. (1989) Ectopic pregnancy)' in a cat. Yet Rec,125,24.
Pauerstein C.J., Eddy C.A., Koong M.K., Moore G.D. (1990). Rabbit endo-salpinxsuppresses ectopicimplantacion. Fertil Steril. 54, 522-526.
Rosset E., Galet C., Buff S. (2011). A case report of an ectopic fetus in a cat. J. Fel. Med. Surg. 13, 610-613.
Segura P., Peris B., Martinez J., Ortega P.J., Corpa J.M. (2004). Abdominal pregnancies in farm rabbits. Theriogenology. 62, 642–651.
Tirgari, M., Secondary ectopic pregnancy in a cat: a case report (1986), Journal of Small Animal Practice, 27(6):383-385.
Watts J.R., Wright P.J., Whithear K.G. (1996). Uterine, cervical and vaginal microflora of the normal bitch. J. Small Anim. Pract. 37: 54-60. 
Wozniak P. (2009). Cases of abdominal gestation among female cats. Weterynaria w Praktyce 6: 52.