摘要
目的探讨磁共振成像(MRI)对恶性滋养细胞肿瘤的诊断价值。方法对19例经病理证实的恶性滋养细胞肿瘤(侵蚀性葡萄胎16例,绒毛膜癌3例)的MRI表现进行回顾,将侵蚀深度和侵犯范围的判定结果与术后病理进行对照。结果①19例子宫内膜边缘不整,T2WI呈高信号,信号不连续。②15例检出出血灶(20个病灶)。③判断肿瘤侵及浆膜层、深肌层、浅肌层的诊断符合率分别为100%(13/13)、83.33%(5/6)、0(0/1);对侵犯宫颈(4/4)、阴道(1/1)的诊断符合率均为100%;对侵犯宫旁的诊断符合率为78.57%(11/14)。④19例均可见紊乱的血管流空信号,分布密集,T1WI和T2WI均呈低信号。结论MRI对恶性滋养细胞肿瘤的早期诊断、显示肿瘤的侵袭深度和侵犯范围具有明显优势,有助于疾病的诊断和治疗。
Objective To investigate the diagnostic value of MRI in malignant trophoblastic tumors. Methods MR images of 19 patients with malignant trophoblastic tumors （16 of invasive mole and 3 of choriocarcinoma） proved by operation were analyzed retrospectively. The depth of invasion and the extent of infiltration were compared with surgicopathologic findings. Results ①The edge of endometria in 19 patients was not regular and discontinuous hyperintensity on T2WI. ②Hemorrhage was found in 15 patients （20 lesions）. ③The diagnostic accordance rate of invaded serosa, deep-myometrium and superficial-myometrium was 100% （13/13）, 83.33% （5/6） and 0 （0/1）, respectively; infiltrated cervix （4/4）, vagina （1/1） were both 100%; infiltrated parametrium was 78. 57% （11/14）.④The sign of flow void showed was detedcted hypointense on TlWI and T2Wl with disordered and dense distribution in 19 patients. Conclusion MR imaging is superior to make early diagnosis and to show the depth and extent of invasion, which is helpful in early diagnosis and therapy of malignant trophoblastic tumors.
出处
《中国医学影像技术》
CSCD
北大核心
2009年第4期665-667,共3页
Chinese Journal of Medical Imaging Technology
关键词
滋养细胞肿瘤
磁共振成像
诊断
Trophoblastic neoplasms
Magnetic resonance imaging
Diagnosis
