Objective:

To explore the correlation between ultrasonic characteristics and pathological types of malignant ovarian tumor at different ages.

Methods:

The ultrasonic features and pathological types were retrospectively analyzed in 406 patients with malignant ovarian tumor confirmed by operation and pathology. The correlation between them at different ages was analyzed.

Results:

A total of 508 lesions were confirmed by pathology

and 492 lesions were diagnosed by pre-operative ultrasound examination. The adolescent gro

up was mainly composed of germ cell tumors

while epithelial ovarian tumor was the main type in the reproductive group and postmenopausal group. The differences in lesion location and ultrasonic features were statistically significant (

P

=0.016

P

=0.001). The average lesion diameter in the adolescent group was larger compared with the other two groups (

P

0.001

P

0.001). The proportion of resistance index (RI) 0.5 in the postmenopausal group was higher than that in the reproductive group (

P

=0.003). However

the positive rates of ascites were not statistically different among three groups (

P

=0.626). The positive rate of preoperative ultrasound diagnosis of malignant tumors was 83.00%

but it was not significantly different among various pathological types (

P

=0.814). The positive rate of ultrasound diagnosis in the postmenopausal group was significantly higherthan that in the reproductive group (P=0.006).

Conclusion:

The pathological types and ultrasonographic characteristics are different at different ages. The positive rate of preoperative ultrasound diagnosis is high in different pathological types

It is higher in the postmenopausal group

especially for epithelial ovarian tumor.