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Objectives: To evaluate the concordance of conventional autopsy (CA) and postmortem magnetic resonance (MR) after termination of pregnancy (TOP) in fetuses with prenatally detected central nervous system (CNS) anomalies. Second, to determine the most informative postmortem investigation in parental counseling., Methods: All TOPs between 2006 and 2016 with prenatally detected CNS involvement and having a postmortem MR and CA as postmortem examinations were retrospectively analyzed and concordance levels were established., Results: Of 764 TOPs, 255 cases had a CNS anomaly detected prenatally (33.4%). Fetal genetic anomalies ( n  = 40) and cases without both postmortem MR and CA were excluded, leaving 68 cases for analysis.Disagreement between postmortem MR and CA was observed in 22 cases (32.4%). In eight cases (11.8%), more information was obtained by CA compared with MR. However, only two cases with major additional findings were found when compared with prenatal diagnosis. In 14 cases (20.6%), MR was superior to CA either because of additional cerebral anomalies undetected by CA ( n  = 5) and/or because of severe autolysis hindering pathology of the CNS ( n  = 9)., Conclusions: Our data point out that an adequate postmortem evaluation, valuable in parental counseling, can be provided by a postmortem MR in 97% of the cases.Key PointsAn adequate postmortem evaluation, valuable in parental counseling, can be provided by a postmortem (PM) magnetic resonance (MR) in the majority of cases.PM MR is an excellent postmortem imaging tool for the brain.In cases with brain autolysis, PM MR is often the only informative PM investigation tool.PM MR is an essential adjunct to CA in the PM evaluation of pregnancies terminated for a central nervous system (CNS) anomaly.

Objective: To report a case of heterotopic interstitial pregnancy after in vitro fertilization-embryo transfer (IVF-ET), presenting with a second trimester uterine rupture. To review the clinical presentations, risk factors, treatment options, and outcome of heterotopic interstitial pregnancies., Methods: We describe the clinical presentation, management, and outcome of a patient with a heterotopic interstitial pregnancy, diagnosed following second trimester rupture of the interstitial pregnancy. We reviewed all published cases of heterotopic interstitial pregnancies., Results: A 35-year-old pregnant woman with a past history of right adnexectomy and 16 weeks pregnant with dichorionic diamniotic twins following IVF-ET, was admitted to our department with unexplained recurrent abdominal pain and anemia. Further investigation showed a hemoperitoneum and because of hypovolemic shock an emergency laparotomy was performed, with diagnosis of a ruptured heterotopic interstitial pregnancy. The uterine defect was sutured using simple interrupted sutures. The intrauterine pregnancy progressed uneventful afterwards.We found 86 cases in the published literature, reporting on heterotopic interstitial pregnancies. 80.2% (69/86) occurred after IVF-ET. History of uni- or bilateral salpingectomy is a major risk factor, present in 39.5% (34/86). 37.2% (32/86) presented with cornual rupture. Surgery was performed in 53.5% (46/86) of cases. Medical management was possible in case of unruptured, early diagnosed heterotopic interstitial pregnancy (32.6% (28/86)). Watchful waiting was only possible when the interstitial pregnancy miscarried (5.8% (5/86)). The live birth rate of the intrauterine pregnancy, when viable at presentation, was 70.0% (56/80). The live birth rate of the interstitial pregnancy was only 4.7% (4/86)., Conclusions: The majority of cases are diagnosed by detailed ultrasound in the setting of early follow-up after IVF-ET and are asymptomatic at diagnosis. Yet, a substantial number of patients present with cornual rupture. Risk factors are IVF-ET and a history of salpingectomy. Depending on clinical presentation, treatment options include watchful waiting, medical treatment, or surgery. Unfortunately, the interstitial pregnancy is generally lost, and only has a chance of survival in case of presentation at a viable gestational age. The outcome of the coexisting intrauterine pregnancy is generally good.