4.7 Article

Microcystic pattern and shadowing are independent predictors of ovarian borderline tumors and cystadenofibromas in ultrasound

Journal

EUROPEAN RADIOLOGY
Volume 31, Issue 1, Pages 45-54

Publisher

SPRINGER
DOI: 10.1007/s00330-020-07113-z

Keywords

Ovary; Epithelial tumors; Cystadenofibromas; Ultrasound

Funding

  1. Key Clinical Specialty Discipline Construction Program of Fujian, P.R.C.
  2. Collaborative Innovation Center for Maternal and Infant Health Service Application Technology, Quanzhou Medical College

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This study investigated the sonographic characteristics of borderline tumors (BoTs) and cystadenofibromas (CAFs), examining differences in ultrasound features and patterns between the two. The research found that acoustic shadowing was a predictor for CAFs, while a microcystic pattern (MCP) was predictive for BoTs, highlighting the importance of proper recognition and utilization of these findings for accurate discrimination between the two types of tumors.
Objectives To determine the sonographic characteristics of borderline tumors (BoTs) and cystadenofibromas (CAFs). Methods Preoperative sonograms from consecutive patients who had at least one primary epithelial tumor in the adnexa were retrospectively collected. All tumors were described using the International Ovarian Tumor Analysis terminology. Ultrasound variables were tested using multinomial logistic regression after univariate analysis. Results A total of 650 patients were included in this study. Of these, 110 had a CAF, 128 had a BoT, 249 had a cystadenoma (CAD), and 163 had a cystadenocarcinoma (CAC). Nearly half of CAFs and more than half of BoTs and CACs appeared to be unilocular and multilocular solid on the ultrasound images, while CADs were predominantly uni- or multilocular (p < 0.001). Overall, shadowing was identified in 82/650 cases. Sixty-five of 110 (59.1%) CAFs exhibited an acoustic shadow, compared with only 4/249 (1.6%) in CADs, 7/128 (5.5%) in BoTs, and 6/163 (3.7%) in CACs (p < 0.001). Furthermore, 112/650 cases demonstrated microcystic pattern (MCP). Sixty-eight of 128 (53.1%) BoTs exhibited MCP, compared with only 5/249 (2.0%) in CADs, 19/163 (11.7%) in CACs, and 20/110 (18.2%) in CAFs (p < 0.001). Logistic regression analysis revealed that shadowing is an independent predictor of CAFs, while MCP is an independent predictor of BoTs. Conclusions Sonographic findings for CAFs and BoTs were complex and partly overlapped with those for CACs. However, proper recognition and utilization of shadowing or MCP may help to correctly discriminate CAFs and BoTs.

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