Challenging Diagnosis of Late Abdominal Pregnancy: A Case Study of Misdiagnosis and Fetal Death in the Third Trimester.

BACKGROUND Abdominal pregnancy is a rare form of extrauterine pregnancy that usually results in a poor outcome; it is associated with serious fetal and maternal morbidity. The diagnosis of advanced abdominal pregnancy is sometimes challenging and should be identified early, at a routine antenatal examination. There are still no evidence-based management strategies for late abdominal pregnancy. This report presents a case of a patient with an abdominal pregnancy and a non-viable fetus. CASE REPORT A 34-year-old woman presented as an emergency 2 months after the diagnosis of intrauterine fetal death at 33 weeks of gestation. During subsequent surgery, the pregnancy was found to be an undiagnosed abdominal pregnancy. The patient had been admitted due to abdominal pain and increasingly deteriorating general condition. On admission, clinical examination and abdominal ultrasound were carried out and the diagnosis of fetal death was confirmed. The diagnosis of extrauterine pregnancy, however, was initially missed, and a decision to induce labor was made. After unsuccessful induction of labor and deterioration of the patient's general condition, a laparotomy was performed, and the diagnosis of abdominal pregnancy was confirmed. A severely macerated fetus and placenta were delivered. Relative to others with this condition, the patient had a very good postoperative outcome with prolonged healing of the surgical incision. Informed consent for publication was obtained from the patient. CONCLUSIONS The diagnosis of late abdominal pregnancy can be missed despite clinical and sonographic examination. This diagnosis should be considered and excluded in similar suspected clinical findings. Proper operative planning in a tertiary center with a well-experienced team is crucial.