Tsukasa Saida, Kensaku Mori, Yumiko Oishi Tanaka, Masafumi Sakai, Taishi Amano, Shunsuke Kikuchi, Souta Masuoka, Miki Yoshida, Tomohiko Masumoto, Toyomi Satoh, Manabu Minami
PURPOSE: To clarify imaging and clinical characteristics of ovarian carcinosarcoma (CS) compared with high-grade serous carcinoma (HGSC).
METHODS: We retrospectively reviewed MR imagings of 12 patients with CS and 30 patients with HGSC and evaluated tumor size, shape, appearance, nature of cystic and solid components, hemorrhage, and necrosis. Age, premenopausal or postmenopausal, histologic subtype, presence of endometriosis, tumor markers, and stage were also evaluated. These parameters were compared using the Mann-Whitney U test and the chi-square test/Fisher's exact test.
RESULTS: The mean size of CSs was 13.6 cm, and significantly larger than that of HGSCs (mean 9.0 cm, p = 0.022). The stained-glass appearance (67% vs. 23%, p = 0.013), hemorrhage (100% vs. 50%, p = 0.003), necrosis (75.0% vs. 13%, p = 0.000), and endometriosis (33% vs. 7%, p = 0.012) were significantly more common in CSs. The postmenopausal ratio of CSs was 100% and significantly higher than that of HGSCs (70.0%, p = 0.041). Among the tumor makers, only CA-125 was significantly lower in CSs than in HGSCs (mean 715.1 U/ml vs. 1677.1 U/ml, p = 0.009). The stage distribution was similar and was not significantly different.
CONCLUSION: CSs formed larger masses, and the stained-glass appearance, hemorrhage, and necrosis were more frequently observed in CSs.
Adult
Aged
Biomarkers, Tumor
Carcinosarcoma
Case-Control Studies
Cystadenocarcinoma, Serous
Female
Hemorrhage
Humans
Magnetic Resonance Imaging
Middle Aged
Necrosis
Neoplasm Grading
Neoplasm Staging
Ovarian Neoplasms
Postmenopause
Premenopause
Retrospective Studies
Tumor Burden