Unrecognized abdominal pregnancy with six months' evolution revealed by acute intestinal obstruction in women with PCOS

Abdominal pregnancy is a rare form of ectopic pregnancy where implantation and development of the egg take place in the peritoneal cavity outside the tubo-uterine mucosa, in contact with intestinal loops. Diagnosis is most often difficult. We report the case of a 32-year-old woman (gravida 1, para 1), with a history of PCOS, diagnosed with abdominal pregnancy at 20 weeks of amenorrhea complicated by acute intestinal obstruction. Diagnosis was confirmed by abdomino-pelvic scan. Surgery was performed with the patient under general anesthesia. She presented a macerated fetus with an infiltration of the placenta causing a perforation of the sigmoid colon and uterus. Hartmann's procedure was performed and the perforation of the uterus was sutured. Abdominal pregnancy remains a rare variety of ectopic pregnancy. Preoperative diagnosis is difficult due to the presence of a variety of non-specific symptoms. This type of ectopic pregnancy remains challenging for gynecologists and radiologists.