During the period of January 1993 to February 1994, 70 pregnant women had an ultrasonic diagnosis of abnormal pregnancy. 111 ultrasound examinations were made--mean 1.6 of each woman. The ultrasonic diagnosis up to 70 women was: missed abortion--35 women (50%), blighted ovum--30 women (42.9%), other diagnosis--5 women (7.1%). Histological examination of material was made with 64 women (91.4%). Comparing the ultrasonic diagnosis to histological results, authors do not recommend a final diagnosis before eight gestation week.
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