Ovarian dysgerminoma: MR and CT appearance
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Y O Tanaka1, Y Kurosaki, M Nishida
1Department of Radiology, University of Tsukuba, Ibaraki, Japan.
Objective:
We determined the MR and CT appearance of ovarian dysgerminoma and correlated our findings with the pathologic features.
Materials And Methods:
CT and MR findings of three patients with ovarian dysgerminoma were retrospectively reviewed and compared with the pathologic findings.
Results:
The tumors were divided into lobules by septa that were hypointense or isointense on T2-weighted imaging and showed marked enhancement on Gd-diethylene triamine pentaacetic acid enhanced T1-weighted imaging and contrast-enhanced CT. These septa corresponded to fibrovascular bundles at histologic examination.
Conclusion:
CT and MR findings characteristic of fibrovascular septa within solid ovarian masses should raise the possibility of dysgerminomas.