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目的探讨胎儿畸胎瘤产前超声和磁共振影像学表现及联合应用的临床价值。方法收集高疑胎儿畸胎瘤32例,与病理结果对照,回顾性分析超声、MRI特征。结果 (1)部位:颅内1例,颈部1例,腹腔7例,骶尾部23例。(2)分型:囊性型10例,囊性为主型10例,实性为主型11例,实性型1例。(3)血供:多血供9例,少血供15例,无血供8例。(4)准确性:超声符合率91%,MRI符合率88%。结论产前超声是检出胎儿畸胎瘤首选方法,而MRI可作重要补充。
Objective To investigate the clinical value of prenatal ultrasound and magnetic resonance imaging in fetal teratoma and its combined application. Methods Thirty-two cases with high suspected fetal teratoma were collected and compared with pathological findings. The features of ultrasound and MRI were retrospectively analyzed. Results (1) site: 1 case of intracranial, 1 case of neck, 7 cases of abdominal cavity, 23 cases of sacrococcygeal. (2) Type: cystic type in 10 cases, cystic type in 10 cases, solid-based in 11 cases, solid type in 1 case. (3) blood supply: more blood supply in 9 cases, less blood supply in 15 cases, no blood supply in 8 cases. (4) accuracy: 91% compliance rate of ultrasound, MRI compliance rate of 88%. Conclusion Prenatal ultrasound is the preferred method of detecting fetal teratoma, and MRI can be an important supplement.