At 28 weeks’ gestation, a 32-year old woman underwent routine obstetrical ultrasonography. She had normal menstrual cycles prior to the pregnancy and had no history of any major illnesses prior to or during the current pregnancy. This is her third pregnancy. Present pregnancy : The patient had amenorrhea for 28 weeks, which corresponds with the age of the fetus on ultrasound scan. She has had no history of discharge or bleeding per the vagina during this pregnancy.
Clinical examination: Blood pressure was normal at 120/82 mm Hg; her other vital signs were within normal limits. Chest examination also was unremarkable. On abdominal examination, the fundal height of the patient matched the gestational age of 28 weeks. Imaging studies : This patient underwent routine transabdominal ultrasonography to exclude any congenital fetal anomalies. An ultrasound scan in the first trimester yielded…
