CT imaging of ovarian yolk sac tumor with emphasis on differential diagnosis.
CT imaging of ovarian yolk sac tumor with emphasis on differential diagnosis.
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卵巢卵黄囊肿瘤的CT影像并注重鉴别诊断
DOI：
10.1038/srep11000
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发表时间：
2015-06-15
影响因子：
4.6
通讯作者：
Zhang GJ
中科院分区：
文献类型：
--
作者：
Li YK;Zheng Y;Lin JB;Xu GX;Cai AQ;Zhou XG;Zhang GJ
摘要卵巢卵黄囊肿瘤是一种罕见的肿瘤。没有放射学研究已经做了比较这种类型的肿瘤和其他卵巢肿瘤的影像学表现。我们分析了11例经病理证实的卵巢YST的CT表现，并将其影像学表现与18例相同年龄段的其他类型卵巢肿瘤进行了比较。两组患者年龄、肿瘤大小、肿瘤形态、腹水及转移情况差异无统计学意义（P> 0.05）。囊实混合型、瘤内出血、明显强化、瘤内血管扩张两组比较差异有统计学意义（P< 0.05）。4个显著CT特征的ROC曲线下面积分别为0.679、0.707、0.705和1.000。多变量逻辑回归分析确定了两个独立的迹象YST：瘤内出血和显着增强。我们的研究结果表明，某些提示性CT征象可能有助于提高YST的影像学诊断准确性，并有助于YST与其他卵巢肿瘤的鉴别。
Ovarian yolk sac tumors (YSTs) are rare neoplasms. No radiological study has been done to compare the imaging findings between this type of tumor and other ovarian tumors. Here we analyzed the CT findings of 11 pathologically proven ovarian YSTs and compared their imaging findings with 18 other types of ovarian tumors in the same age range. Patient age, tumor size, tumor shape, ascites and metastasis of two groups did not differ significantly (P> 0.05). A mixed solid-cystic nature, intratumoral hemorrhage, marked enhancement and dilated intratumoral vessel of two groups differed significantly (P< 0.05). The area under the ROC curve of four significant CT features was 0.679, 0.707, 0.705 and 1.000, respectively. Multivariate logistic regression analysis identified two independent signs of YST: intratumoral hemorrhage and marked enhancement. Our results show that certain suggestive CT signs that may be valuable for improving the accuracy of imaging diagnosis of YST and may be helpful in distinguishing YST from other ovarian tumors.
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