28例原发性卵黄囊瘤患者的CT表现分析

Analysis of CT Findings in 28 Patients with Primary Yolk Sac Tumor

目的分析28例原发性卵黄囊瘤(YST)患者的CT表现。方法选择2015年2月至2019年12月收治的28例YST患者的临床资料进行回顾性分析,8例YST患者入院后均予以CT检查,然后对患者的CT影像学特征和临床资料数据进行分析比较。结果本研究中28例YST患者肿瘤位于性腺的有17例(60.71%),其中位于睾丸、卵巢处的分别有7例、10例,占比分别为60.71%、41.18%,均为单侧发病;9例(39.29%)位于性腺外,其中位于骶尾部、前纵隔、阴道的分别有6例、2例、1例,占比分别为66.67%、22.22%、11.11%。CT检测可见肿瘤"浅分叶",且呈"椭网形",18例(64.29%)肿瘤边界较为清晰,9例(32.14%)呈"深分叶状"形态不规则;8例(28.57%)边界模糊,肿瘤大小分析可见,肿瘤位于前纵隔、卵巢的相对较大,位于阴道、睾丸、骶尾部的相对较小。28例YST患者中,单纯型21例YST(75.00%),混合型7例(25.00%)。结论原发性卵黄囊瘤进行CT检测尤为重要,其CT表现具有一定特征性,可为临床治疗提供一定的依据。

Objective To analyze the CT findings of 28 patients with primary yolk sac tumor(YST).Methods The clinical data of 28 YST patients admitted to the Pingdingshan Maternity and Child Health Hospital in Henan Province from February 2015 to December 2019 were selected for retrospective analysis,and all were examined by CT technology.Analyze the clinical characteristics and CT imaging characteristics of the patients.Results In this study,28 cases of YST patients with tumors were located in the gonads in 17 cases(60.71%),of which 7 cases and 10 cases were located in the testis and ovaries,accounting for 60.71%and 41.18%respectively,all of which were unilateral disease;9 cases(39.29%)were located outside the gonads,including 6 cases,2 cases,and 1 case located in the sacrum,anterior mediastinum,and vagina,accounting for 66.67%,22.22%,and 11.11%respectively.CT examination showed that the tumor was"elliptical mesh"with"shallow lobes",18 cases(64.29%)had relatively clear tumor borders,9 cases(32.14%)had"deep lobular"morphology and irregular shapes;8 cases(28.57%)had blurred borders and were adjacent;The organs are unclear.Tumor size analysis shows that the tumor located in the anterior mediastinum and ovary was relatively large,and the tumor located in the vagina,testis,and sacrum was relatively small.Among 28 patients with YST,21 cases were YST(75.00%)with simple type and 7 cases(25.00%)with mixed type.Conclusion CT detection of primary yolk sac tumor is particularly important,and its CT appearance has certain characteristics,which can provide a certain basis for clinical treatment.