本文選題：纖維瘤　切入點：磁共振成像　出處：《中國醫(yī)學(xué)影像學(xué)雜志》2017年09期

【摘要】：目的探討侵襲性纖維瘤病(AF)的CT、MRI表現(xiàn),重點分析其強化特征及病理關(guān)系,以提高診斷準(zhǔn)確性。資料與方法回顧性分析33例經(jīng)病理證實的AF患者的影像資料,并與術(shù)后病理結(jié)果進(jìn)行對照,探討特征影像的病理基礎(chǔ)。結(jié)果 33例患者中,腹外型17例,腹壁型4例,腹內(nèi)型12例;15例呈浸潤性生長,18例呈膨脹性生長。CT掃描8例呈均勻漸進(jìn)性強化;1例病灶周圍強化,中心未見明顯強化;1例病灶邊緣包膜強化;23例病灶呈不均勻、漸進(jìn)性強化,其中9例增強后稍低密度區(qū)明顯強化,稍高密度區(qū)輕度強化,呈現(xiàn)密度"反轉(zhuǎn)"特征。MRI示7例病灶信號不均,以稍長T1、稍長T2信號為主,其中5例可見不規(guī)則短T2信號區(qū),增強后稍長T1、稍長T2信號區(qū)強化明顯,短T2信號區(qū)輕度強化。病理鏡下見腫瘤由不同比例的梭形成纖維細(xì)胞和膠原纖維組成,細(xì)胞密集區(qū)域?qū)?yīng)稍低密度、長T2信號區(qū),增強后明顯強化;而膠原纖維豐富區(qū)對應(yīng)稍高密度、短T2信號區(qū),增強后輕度強化。結(jié)論 AF的CT和MRI強化方式具有一定的特征性,有助于術(shù)前診斷。
[Abstract]:Objective to investigate the CT MRI findings of invasive fibromatosis (AFD), and to analyze its enhanced features and pathological relationship in order to improve the diagnostic accuracy.Materials and methods the imaging data of 33 patients with AF confirmed by pathology were retrospectively analyzed and compared with the pathological results after operation to explore the pathological basis of characteristic images.Results among the 33 patients, 17 were abdominal external type, 4 were abdominal wall type, 15 were intraabdominal type and 15 were infiltrative growth. Ct scan showed homogeneous progressive enhancement in 1 case.No obvious enhancement was seen in the center of the lesion. In 1 case, the lesions were uneven and progressive in 23 cases. Among them, 9 cases showed slight enhancement in the low density area and slight enhancement in the slightly high density area.MRI showed that the signal intensity was uneven in 7 cases, including slightly longer T _ 1 and slightly longer T _ 2 signals. Among them, 5 cases showed irregular short T _ 2 signal area, slightly longer T _ 1 signal area after enhancement, slight enhancement in short T _ 2 signal area and slight enhancement in short T _ 2 signal area.Pathological examination showed that the tumor was composed of fusiform fibroblasts and collagen fibers of different proportions. The dense area of cells was a little low density, the long T2 signal region was obviously enhanced, while the rich area of collagen fiber was a little higher density, and a short T2 signal region.Mild enhancement after enhancement.Conclusion CT and MRI enhancement of AF are characteristic and helpful for preoperative diagnosis.
【作者單位】： 新疆維吾爾自治區(qū)人民醫(yī)院放射影像中心;
【分類號】：R445.2;R730.44

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