[Clinical evaluation of ultrasonography in diagnosis of the early invasive hydatidiform mole].

The consecutive uterine changes of the B ultrasonic scan were observed in 41 cases with invasive hydatidiform mole, which compared with the uterine changes in 10 controls who had induction of labor in second trimester. It was found that B ultrasonic scan was very useful technic in diagnosis of invasive mole. The time when the serum hCG titers fell to normal was earlier than the time of B scan reversed during treatment. Therefore, the B scan of uterus is of value in early diagnosis and therapeutic quide of invasive mole.