This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ectopic Pregnancy (Hello ! Where are you ?), Subject name: Gynaecology & Obstetrics
Heterotopic pregnancy is 
Select and explain. 
A. Pregnancy occurring in both tubes, B. Extrauterine and intrauterine pregnancy, C. Ovarian and tubal pregnancy, D. Cervical pregnancy
B: Extrauterine and intrauterine pregnancy
Answer: B: Extrauterine and intrauterine pregnancy 
Explanation: A heterotopic pregnancy is a rare complication of pregnancy in which both extra-uterine (ectopic pregnancy) and intrauterine pregnancy occur simultaneously. Incidence of this has now increased to around 1 in 3000 pregnancies due to the advent of IVF. It may also be referred to as a combined ectopic pregnancy /multiple sited pregnancy, or co-incident pregnancy.