【摘要】 目的 探讨原发性输卵管浆液性癌（primary fallopian tube carcinoma, PFTC）的MRI表现及与病理相关性。方法 选取10例经手术病理证实的PFTC的MRI资料，分析MRI表现，包括病灶部位、形状、构成、大小、信号强度、强化情况、淋巴结转移、盆腔转移及典型征象。同时分析DWI和DCE特征以及临床病理特征。结果 PFTC 10例患者，病灶11个，主要临床症状：阴道出血6例，腹部肿块6例。MRI肿瘤呈腊肠型7例，菜花型结节3例，分叶状1例。11个病灶肿瘤实性部分T₁WI呈低信号，T₂WI呈稍高信号，DWI呈明显高信号，5个病灶可见轻到中度强化，动态曲线呈II型，所有患者均可见“输卵管残余征”,5例增强扫描的患者可见“假包膜征”。结论 PFTC表现为附件区肿块伴“输卵管残余征”及“假包膜征”;DWI及DCE对诊断原发性输卵管浆液性癌有一定的帮助。更多还原

【Abstract】 Objective To explore characteristic magnetic resonance imaging（MRI） features of primary fallopian tube carcinoma（PFTC） with pathological correlation. Methods Ten patients with pathologically confirmed PFTC were retrospectively reviewed. The conventional MRI features were analyzed, including laterality, shape, size, signal-intensity, contrast enhancement, lymph node metastasis, pelvic metastasis and typical signs. We also analyzed the diffusion-weighted imaging（DWI） and dynamic contrast-enhanced（DCE） MRI features and the clinical and pathological informations of PFTCs. Results Eleven tumors in ten patients were evaluated. The main clinical manifestation were vaginal discharge（n=6） and palpable adnexal mass（n=6）. In MR imaging, the tumor showed sausage-shaped（n=7）, cauliflower-shape nodular（n=3） or lobulated（n=1） morphology. The solid portion was hypointense intensity on T₁-weighted imaging（T₁WI）（n=11）, slightly hyperintense（n=11） on T₂-weighted imaging（T₂WI）, with highly hyperintense on DWI（n=11）. Minimal-to-mild contrasted enhancement was detected in five tumors with type II signal intensity curve（n=5）. The “vestigital fallopian tube signs” were found in all eleven tumors（n=11）, and “pseudocapsule signs” were detected in all 5 tumors with contrasted enhanced MRI. Conclusion PFTC might manifest as adnexal solid masses with “vestigital fallopian tube sign” and “pseudocapsule sign” in preoperative imaging. DWI and DCE-MRI may be a promising tool for the diagnosis of PFTC.更多还原