資源描述:
《肝局灶性結(jié)節(jié)性增生ct影像及病理對(duì)照研究》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在應(yīng)用文檔-天天文庫(kù)。
1、從本學(xué)科出發(fā),應(yīng)著重選對(duì)國(guó)民經(jīng)濟(jì)具有一定實(shí)用價(jià)值和理論意義的課題。課題具有先進(jìn)性,便于研究生提出新見解,特別是博士生必須有創(chuàng)新性的成果肝局灶性結(jié)節(jié)性增生CT影像及病理對(duì)照研究【摘要】 目的探討肝局灶性結(jié)節(jié)性增生(focalnodularhyperplasiaFNH)的CT影像學(xué)表現(xiàn)特點(diǎn)。方法經(jīng)手術(shù)切除病理證實(shí)為肝局灶性結(jié)節(jié)性增生15例患者,術(shù)前均行螺旋CT平掃及動(dòng)態(tài)增強(qiáng)掃描,并進(jìn)行影像學(xué)及病理學(xué)對(duì)照分析。結(jié)果15例FNH病灶均呈孤立結(jié)節(jié)或分葉狀腫塊,多數(shù)直徑2~5cm。平掃呈等或略低密度及信號(hào)。動(dòng)態(tài)增強(qiáng)
2、掃描,動(dòng)脈期病灶均為明顯的均質(zhì)強(qiáng)化,靜脈期及延遲期12例仍略高于肝實(shí)質(zhì),3例略低于或等于肝實(shí)質(zhì)。9例病灶內(nèi)顯示瘢痕,其中8例呈延遲強(qiáng)化。病理觀察:15例FNH均無包膜,增生的肝細(xì)胞形成肝板被纖維間隔分割呈結(jié)節(jié)狀,瘢痕區(qū)域由纖維結(jié)締組織及厚壁畸形血管組成。結(jié)論典型的FNH影像學(xué)可明確診斷,不典型的FNH應(yīng)與肝細(xì)胞腺瘤、肝細(xì)胞癌、肝血管瘤相鑒別?!娟P(guān)鍵詞】肝局灶性結(jié)節(jié)性增生肝腫瘤體層攝影術(shù)X線計(jì)算機(jī)【Abstract】ObjectiveToexplorethepathologicalandimagingcha
3、racteristicsoffocalnodularhyperplasia(FNH)ofliver.Methods1casesofpathologicallyprovenFNHunderwenttriplephasespiralCTscan.Thepathologicalandimagingfeatures課題份量和難易程度要恰當(dāng),博士生能在二年內(nèi)作出結(jié)果,碩士生能在一年內(nèi)作出結(jié)果,特別是對(duì)實(shí)驗(yàn)條件等要有恰當(dāng)?shù)墓烙?jì)。從本學(xué)科出發(fā),應(yīng)著重選對(duì)國(guó)民經(jīng)濟(jì)具有一定實(shí)用價(jià)值和理論意義的課題。課題具有先進(jìn)性,便于研究
4、生提出新見解,特別是博士生必須有創(chuàng)新性的成果werecompared.ResultsAllpatientshadasolitaryglobular,lobulatedmass,themajorityofcaseswasapproximately-cmindiameter.OnunenhancedCT,focalnodularhyperplasiaisclassicallyseenasasolitary,homogeneous,andslightlyhypoattenuatingareacomparedwi
5、thnormalliver,FNHdemonstratedintensehomogeneousenhancementduringthearterialphaseofenhancedimagingand1casesdemonstratedhyperttenuating,casesdemonstratedhypoattenuatingorisoattenuatingareacomparedwithnormalliverduringthelaterphaseofenhancedimagingandvenousp
6、hase.casesshowedenhancementofthecentralscarduringdelayedphases,casesshoweddelayedenhancementAthistologicanalysis,1casesofFNHwerewelllimitedbuthyperplasticparenchymaofthelivewassubdividedintosmallnodulesthatweresurroundedbythefibroussepta,therewasacentrals
7、carcomposedoffibrousconnectivetissueandmalformedvesselsofvariouscaliber.ConclusionThetypicalFNHcanbediagnosed.Atypicalcasesshouldbedifferentiatedfromhepatocelluaradenoma、hepatocellularcarcinomaandhemangiomas.課題份量和難易程度要恰當(dāng),博士生能在二年內(nèi)作出結(jié)果,碩士生能在一年內(nèi)作出結(jié)果,特別是對(duì)實(shí)驗(yàn)條件
8、等要有恰當(dāng)?shù)墓烙?jì)。從本學(xué)科出發(fā),應(yīng)著重選對(duì)國(guó)民經(jīng)濟(jì)具有一定實(shí)用價(jià)值和理論意義的課題。課題具有先進(jìn)性,便于研究生提出新見解,特別是博士生必須有創(chuàng)新性的成果【Keywords】FocalnodularhyperplasiaLiverneoplasmsTomographyX-raycomputed肝局灶性結(jié)節(jié)性增生是一種少見的肝細(xì)胞的良性占位性病變。在日常影像診斷中,與高分化肝細(xì)胞肝癌、肝細(xì)胞腺瘤或肝其他瘤樣病變等很難鑒別。作者通過