The following is a summary of “Prenatal ultrasound phenotype of fetuses with recurrent 1q21.1 deletion and duplication ...

[12] Therefore, progesterone levels often do not aid in the diagnosis of ectopic pregnancy. A transvaginal ultrasound can confirm the presence of an intrauterine gestation by 5.5 weeks in almost ...

with no signs of an intra- or extra-uterine pregnancy on transvaginal ultrasound scan (TVS). The term is not synonymous with ectopic pregnancy. Whilst a proportion of women will subsequently be ...