Struma ovarii: appearance on MR images

被引:47
作者
Joja, I
Asakawa, T
Mitsumori, A
Nakagawa, T
Hiraki, Y
Kudo, T
Ando, M
Akamatsu, N
机构
[1] Okayama Univ, Sch Med, Dept Radiol, Okayama 700, Japan
[2] Okayama Univ, Sch Med, Dept Obstet & Gynecol, Okayama 700, Japan
[3] Kurashiki Seijinbyo Ctr, Dept Obstet & Gynecol, Kurashiki, Okayama 710, Japan
[4] Himeji Red Cross Hosp, Dept Obstet & Gynecol, Himeji, Hyogo 670, Japan
来源
ABDOMINAL IMAGING | 1998年 / 23卷 / 06期
关键词
struma ovarii; ovaries; MR imagining; neoplasms; thyroid;
D O I
10.1007/s002619900424
中图分类号
R57 [消化系及腹部疾病];
学科分类号
摘要
Background: The purpose of this multi-institutional study was to examine the appearance of struma ovarii on magnetic resonance (MR) images. Methods: MR images of 12 patients with histologically proven struma ovarii were retrospectively reviewed. All patients underwent T1-weighted and T2-weighted imaging. Contrast-enhanced T1-weighted images with Gd-DTPA were available in 10 patients. The following determinations were made: tumor morphology, signal intensities, contrast-enhancement effects of solid components with Gd-DTPA, and comparison of MR images with resected specimens. Results: All 12 patients had both cystic and solid components, with a multilobulated surface and thickened septa. Signal intensities on T1-weighted images were mainly low, partly intermediate to high, or high, and those on T2-weighted images were mainly high, with different signal intensities. Contrast-enhancement effects were marked or moderate. The contents that showed low signal intensities on T1-weighted images and signal voids or low signal intensities on T2-weighted images were viscid gelatinous materials. Conclusions: A multicystic tumor with a solid component, a multilobulated surface, and signal intensities that indicate the presence of viscid gelatinous materials appear to be a characteristic MR finding of struma ovarii.
引用
收藏
页码:652 / 656
页数:5
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