Dohke M, Watanabe Y, Takahashi A, Katayama T, Amoh Y, Ishimori T, Okumura A, Oda K, Mitsudo K, Minami K, Ukita M, Dodo Y
Department of Radiology, Kurashiki Central Hospital, Japan.
J Comput Assist Tomogr. 1997 Mar-Apr;21(2):265-7. doi: 10.1097/00004728-199703000-00018.
The purpose of this study was to determine the MR appearance of struma ovarii correlating with the pathological features.
MR findings of two patients with struma ovarii were retrospectively reviewed and compared with the pathological findings.
Both tumors were complex masses composed of multiple cysts and solid components. The size and signal intensity of multiple cysts varied within the tumor. Hyperintense cystic areas on T1-weighted images were thought to correspond pathologically to hemorrhagic cysts and follicles containing viscous proteinaceous colloid. Solid components had as high a signal intensity as did uterine endometrium on T2-weighted images and as intermediate a signal intensity as did uterine muscle layer on T1-weighted images. After intravenous administration of gadolinium-DTPA, the solid components showed marked contrast enhancement. There was also ascitic fluid associated with adhesion and peritoneal thickening.
The characteristic MR appearance of struma ovarii is thought to be a mixed mass composed of T2-hyperintense solid components with intense contrast enhancement and multiple T1-hyperintense cystic areas suggestive of hemorrhagic degeneration and viscous proteinaceous colloid.
本研究旨在确定卵巢甲状腺肿的磁共振成像（MR）表现与病理特征之间的相关性。
回顾性分析2例卵巢甲状腺肿患者的MR表现，并与病理结果进行比较。
2个肿瘤均为复杂肿块，由多个囊肿和实性成分组成。肿瘤内多个囊肿的大小和信号强度各不相同。T1加权图像上的高信号囊性区域在病理上被认为对应于出血性囊肿和含有粘性蛋白质胶体的卵泡。实性成分在T2加权图像上的信号强度与子宫内膜一样高，在T1加权图像上的信号强度与子宫肌层一样呈中等强度。静脉注射钆喷酸葡胺后，实性成分显示出明显的对比增强。还存在与粘连和腹膜增厚相关的腹水。
卵巢甲状腺肿的特征性MR表现被认为是由T2高信号实性成分伴明显对比增强和多个提示出血性退变及粘性蛋白质胶体的T1高信号囊性区域组成的混合性肿块。
