Methods The surgical and pathological examination of the girl swollen block supernumerary pelvic ultrasonography and to compare differences in tumor imaging characteristics.
方法分析手术及病理证实的少女盆腔赘生肿块的声像表现，比较肿块声像特征的差异。
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Results The incidence of the struma ovarii was 3.75% in mature teratoma of ovary. The clinical features were non-specific pelvic tumor or no symptom found in the patients in physical examination.