Primary ovarian pregnancy: a report of four cases

Primary ovarian pregnancy is a rare form of ectopic pregnancy that constitutes 0.15-3 % of all ectopic pregnancies. Ovarian pregnancy results from the fertilization of trapped ovum within the follicle. Exact pre-operative diagnosis is often difficult, and with a few exceptions, the initial diagnosis is made on the operation table and the final diagnosis only through histopathology. The treatment of choice for ovarian pregnancy is usually ovarian wedge resection or oophorectomy, also there is a place for medical treatment of selected patients. Between October 2005 and May 2010, four cases of ovarian pregnancy that were detected and treated during laparotomy for suspected rupture of ectopic pregnancy are described. Three cases were treated by ovarian wedge resection. In one case, a single dose of 50 mg/m2 methotrexate treatment was given, but the same mentioned surgical procedure were performed due to rupture of gestation. In all cases diagnoses were confirmed by pathologic examination. We aimed to discuss a rare form of ectopic pregnancy, primary ovarian pregnancy, and highlight the diagnostic criteria