摘要:目的: 分析肝臟局灶性結(jié)節(jié)增生(FNH)的MRI表現(xiàn)和病理特點(diǎn),探討兩者的相關(guān)性,提高FNH診斷的準(zhǔn)確率。 方法 :回顧性分析23例(共28個(gè)病灶)經(jīng)手術(shù)切除病理證實(shí)為FNH的MRI平掃及增強(qiáng)表現(xiàn),與其病理特點(diǎn)進(jìn)行對(duì)照。 結(jié)果 :25個(gè)病灶在平掃T1WI上呈等或稍低信號(hào),T2WI上呈等或稍高信號(hào),3個(gè)病灶在平掃T1WI及T2WI上均呈稍高信號(hào),增強(qiáng)后所有28病灶動(dòng)脈期可見(jiàn)明顯強(qiáng)化,門脈期及延遲期呈稍高、等或稍低信號(hào),其中12個(gè)病灶可見(jiàn)中心纖維瘢痕延遲強(qiáng)化。FNH組織病理上表現(xiàn)為富血供的實(shí)質(zhì)性腫塊,腫物內(nèi)部組織較均勻,沒(méi)有異型細(xì)胞,中心可見(jiàn)纖維瘢痕。 結(jié)論 :肝臟MRI平掃及增強(qiáng)檢查能很好的反映FNH的組織病理及血供特點(diǎn),能為FNH的診斷及鑒別診斷提供可靠證據(jù)。
Abstract: Objective: To analyze the MRI manifestations and pathology characteristic of hepatic focal nodular hyperplasia(FNH),and to investigate their correlation. Methods : A retrospective analysis was made on the unenhanced and dynamic enhanced MR images of 23 patients (totally 28 lesions) with surgical and pathological proved FNH. Results :25 FNH lesions demonstrated isointensity or slightly hypointense on unenhanced T1WI,and isointensity or slightly hyperintense on unenhanced T2WI,3 FNH demonstrated hyperintense on both unenhanced T1WI and T2WI. 28 FNHs were markediyhyperintense in the arterial phase of dynamic contrast enhanced MRI, and isointense or slightly hyperintense in the portal and delayed phase．The seals were shown in 12 lesions, and enhanced in delayed phase．FNH is solid mass with vast blood supply,its inside structure is homogemeous. Typical seal can be found by microscopic examination．〖WTHZ〗Conclusion : MRI could disclose the pathologic features of FNH and its blood supply and improve the accuracy 0f its diagnosis．

引用本文： 李卉,劉學(xué)文,李建鵬,謝傳淼,尹韶晗,耿志君. 肝臟局灶性結(jié)節(jié)增生的MRI表現(xiàn)與病理對(duì)照分析. 華西醫(yī)學(xué), 2009, 24(10): 2563-. doi: 復(fù)制