Failed early pregnancy
12 weeks gestation; bleeding episodically; previous ultrasound 4 weeks ago normal and compatible with LMP.
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Fetal size and age corresponding to estimated gestational age based on early ultrasound but absence of cardiac activity noted.
First-trimester bleeding complicates nearly 25% of all pregnancies, about half of which end in spontaneous miscarriage.
Lack of cardiac activity with CRL of 7mm or absent fetal pole with mean sac diameter greater than 25 mm at endovaginal examination is indicative of failed early pregnancy.