Urogenital ImagingBorderline malignant ovarian neoplasm
ovarian tumours with neither clearly
benign nor obviously
malignant histological and biological features. They comprise 15% of epithelial ovarian neoplasms, and have a 10-year survival rate of 95%. One half to one third are limited to one ovary. Extraovarian spread has been reported, as have late recurrences, testifying to the
malignant, if not aggressive, nature of these tumours.
On cross-sectional imaging studies, ultrasound, CT or MR imaging, borderline malignant ovarian neoplasms are usually cystic lesions, but both irregularity of the wall, and the presence of vegetation can be detected. Based on imaging, borderline malignant ovarian neoplasms cannot be distinguished from malignant ovarian neoplasms. Ultrasound is usually the initial examination. If ultrasound findings are indeterminate, then a magnetic resonance imaging study is recommended. MRI is preferred to CT, not only because of its lack of radiation but also because it provides higher contrast resolution and better tissue characterization properties, such as the recognition of blood (Fig.1). Solid borderline malignant ovarian neoplasms have been reported but are less commonly seen. See also carcinoma ovarian
HH
To view high resolution images,
please register first.
Click
here
to register.
Already registered? Enter your e-mail in the window below.Re-registerFig.1
Axial T2-weighted MRI section shows bilateral cystic adnexal masses (arrows), with mild internal complexity. Histology demonstrated a serous cystadenocarcinoma with low malignant potential.
 | |
Borderline malignant ovarian neoplasm, Fig.1 | |