Misdiagnosis Analysis of 12 Patients with Endometrial Stromal Sarcoma by Ultrasound

Objective To explore the sonographic features and misdiagnosed causes of endometrial stromal sarcoma( ESS).Methods Sonographic features of 12 patients diagnosed as having ESS by surgical means and pathology examinations,were retrospectively analyzed.Results Uterus or cavitas pelvis masses were found in 12 patients by preoperative Color doppler flow imaging and spectral doppler examination.Diameters of tumors were 2.3cm-11.2cm,peak systolic velocity( PSV) was( 29 ±13.4) cm/s,and resistance index( RI) was 0.41 ± 0.04.All the patients were misdiagnosed by ultrasound,5 patients were misdiagnosed as having uterine myoma,uterine sarcoma and endometrial carcinoma were respectively misdiagnosed in 2 patients,adenomyosis,submucous myoma and pelvic mass each were respectively misdiagnosed in 1 patient.All the patients were confirmed with having ESS by results of surgical pathology and immunohistochemical staining.Conclusion Two-dimensional ultrasound combined with color doppler is helpful in improving the diagnosis rate of ESS and avoiding misdiagnosis.