【摘要】：目的:提高對肝臟上皮樣血管內(nèi)皮瘤(EHE)的影像及病理學(xué)認(rèn)識。方法:回顧性分析4例肝EHE的臨床及影像學(xué)表現(xiàn),所有病例經(jīng)過穿刺活檢或手術(shù)病理學(xué)證實(shí)。其中3例行CT平掃及增強(qiáng)掃描,1例同時行CT平掃和MRI平掃及增強(qiáng)掃描。結(jié)果:CT平掃示肝臟單發(fā)或多發(fā)類圓形低密度灶,邊界清楚,增強(qiáng)掃描呈漸進(jìn)性輕度強(qiáng)化,中央更低密度區(qū)無強(qiáng)化。MRI顯示肝內(nèi)多個環(huán)形病灶,實(shí)質(zhì)部分呈稍長T1、稍長T2信號,中央部分呈稍短T1長T2信號,增強(qiáng)掃描示環(huán)形實(shí)質(zhì)部分強(qiáng)化、延時掃描示病灶持續(xù)強(qiáng)化,結(jié)節(jié)中央無強(qiáng)化。組織學(xué)示腫瘤中部分區(qū)域纖維結(jié)締組織增生,其間可見上皮樣細(xì)胞,呈印戒狀。免疫組化,CD34、CD31、Ⅷ因子相關(guān)抗原均呈陽性。結(jié)論 :肝臟EHE的影像表現(xiàn)具有一定的特征性,表現(xiàn)為單發(fā)或多發(fā)病灶,病灶之間可相互融合,多發(fā)位于肝包膜下,可見"包膜回縮征",增強(qiáng)掃描呈漸進(jìn)性強(qiáng)化,部分病灶可見"棒棒糖征"。
[Abstract]:Objective: to improve the image and pathology of hepatic epithelioid angioendothelioma (EHE). Methods: the clinical and imaging findings of 4 cases of hepatic EHE were retrospectively analyzed. All cases were confirmed by biopsy or pathology. CT plain scan and contrast enhanced scan were performed in 3 cases, and CT plain scan and MRI plain scan and enhanced scan were performed in 1 case at the same time. Results: CT plain scan showed single or multiple round low density foci of liver with clear boundary, progressive slight enhancement on enhancement scan, and no enhancement in central lower density area. MRI showed multiple circular lesions in the liver, and the parenchyma showed slightly longer T 1, T 1 and T 1, respectively. A slightly longer T 2 signal intensity was seen in the central part of the lesion, and a shorter T 1 long T 2 signal was seen in the central part of the lesion. The circular parenchyma was enhanced by contrast enhanced scan, while the focus was continuously enhanced by delayed scan. Histologically, the fibrous connective tissue was proliferated in some areas of the tumor, and epithelial-like cells were seen in the tumor, showing imprint-like cells. Immunohistochemical staining and CD34,CD31, 鈪，

本文編號：2431665