Intra- and inter-observer agreement with regard to describing adnexal masses using International Ovarian Tumor Analysis (IOTA) terminology: a reproducibility study involving seven observers.

To estimate intraobserver repeatability and interobserver agreement in assessing the presence of papillary projections in adnexal masses and in classifying adnexal masses using the International Ovarian Tumor Analysis (IOTA) terminology for ultrasound examiners with different levels of experience, to identify ultrasound findings that cause confusion and might be interpreted differently by different observers, and to determine if repeatability/agreement change after consensus has been reached on how to interpret "problematic" ultrasound images.