P30.03: Imaging in gynecological disease: clinical and ultrasound features of ovarian endometrioid carcinoma

To describe clinical and ultrasound features of ovarian endometrioid carcinoma. Patients with a histological diagnosis of ovarian endometrioid carcinoma, who had undergone preoperative ultrasound, were retrospectively identified from 10 ultrasound centres. The masses were described using the terms of the IOTA group. 192 patients with a diagnosis of endometrioid carcinoma were identified. Median age of the patients was 56 (range,19-88) years. Most of the staged cases were FIGO Stage I (n=113/191,59.2%) and the vast majority of the tumours having an available grading were of grading 1 or 2 (n=124/172,72%). Forty (20.8%) cases were associated with endometriosis. On ultrasound, 2 (1%) carcinomas were unilocular, 2 (1%) multilocular, 34 (17.7%) unilocular-solid, 89 (46.4%) multilocular-solid and 65 (33.9%) solid masses. The median of the largest diameter of the lesion was 104 (range 20-300) mm. Papillary projections were present in 61 (31.8%) masses. The echogenicity of cyst fluid was anechoic in 27 (14.1%) cases, low level in 72 (37.5%), ground glass in 17 (8.9%), hemorrhagic in 2 (1%) and mixed in 10 (5.2%), whereas 64 (33.3%) cases had no cyst fluid. 149 cases (77.6%) were unilateral. Supporting information can be found in the online version of this abstract Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.