Spontaneous heterotropic pregnancy in sickle cell disease with survival of the abdominal pregnancy.

A case is presented of a spontaneously conceived heterotopic pregnancy in a 38-year-old Haemoglobin SS woman, with intrauterine foetal demise and survival of the extra-uterine pregnancy, which was an abdominal pregnancy. The diagnosis was not made until delivery. This report should create the awareness of the possibility of abdominal or heterotopic pregnancy in spontaneous cycles, particularly in patients with recurrent severe anaemia in pregnancy, whether or not they have haemoglobinopathies.