Contralateral ovarian pregnancy after single tubal recanalisation

Abstract

Ovarian pregnancy accounts for less than 3% of all ectopic pregnancies. A 30-year-old who had undergone right tubal reanastomosis seven months prior presented with pain abdomen and spotting. Her last menstrual period was 30 days prior. Examination revealed stable vitals, tenderness and shifting dullness per abdomen, fullness in the pouch of Douglas, a tender left adnexal mass and normal size uterus. Urine pregnancy test was positive. Culdocentesis revealed blood. A heteroechoic 3 × 3.2 × 3.1 cm left adnexal mass and free fluid were detected on ultrasound. There was no intrauterine gestational sac. On laparotomy 800 mL of hemoperitoneum was present. There was no evidence of tubal pregnancy. Left ovary had a 3 × 5 cm hemorrhagic mass. Partial ovariectomy was done and histopathology revealed ovarian pregnancy. This is the first reported case of an ovarian pregnancy occurring after tubal recanalisation. After successful tubal recanalisation procedure, altered motility of the reconstructed tube may cause expulsion of fertilized ovum into the peritoneal cavity and contralateral ovarian implantation.