長治醫學院附屬和濟醫院消化科,山西 長治 046000
【Abstract】 To analyse the clinical and image characteristics of the patient, and exclude hepatocellular carcinoma, metastatic carcinoma, hemangioma, cyst, et al, the intrahepatic cholangiocarcinoma (iCCA) was confirmed by pathological diagnosis finally. To recognize focal fatty liver with iCCA in correct, the key is to combine clinical experience, imaging findings and documentations (biopsy if necessary). The reasonable utilization of imaging examination and the detailed analysis of its results play important roles.
【Keywords】 Fatty liver; Cholangiocarcinoma; Misdiagnose; Computed tomography; Ultrasound
局灶性脂肪肝(以下簡稱局肝)也叫肝臟局灶性脂肪浸潤或非均勻性脂肪肝,可認為是脂肪肝的一種特殊類型,臨床較少見。超聲對局肝的診斷不敏感,缺乏特異性;CT對此病的診斷有較高價值。局肝如不借助增強CT不易與肝癌、肝囊腫、肝血管瘤等區分,容易誤診為肝內的占位性病變(特別是肝癌)。膽管細胞癌是一種異質性強的惡性腫瘤,其發生位置遍布于毛細膽管到膽總管,分為肝內膽管細胞癌(intrahepatic cholangiocarcinoma,iCCA)、肝門部膽管癌和遠端膽管癌。iCCA又分為腫塊型、管周浸潤型及腔內生長型,易誤診為肝血管瘤、原發性肝細胞癌、肝轉移癌及肝囊腫等。
病例患者,女,58歲,主因納差20余天、乏力7 d入院,既往高血壓病史10余年,否認病毒性肝炎病史,無飲酒史,其母親死于肝癌。患者體檢皮膚黏膜黃染伴瘙癢,其余無明顯陽性體征。輔助檢查:白細胞7.74×109L-1,紅細胞5.18×1012L-1,血紅蛋白159 g/L,血小板254×109L-1;肝功:谷丙轉氨酶202 U/L,谷草轉氨酶122 U/L,總膽紅素74.8 μmol/L,直接膽紅素56.0 μmol/L,間接膽紅素18.8 μmol/L,堿性磷酸酶384 U/L;肝炎病毒標志物系列陰性;腎功能及凝血系列無異常;CEA 1.93 ng/L;AFP 10.72 IU/ml;血脂:總膽固醇5.86 mmol/L,甘油三酯2.41 mmol/L,低密度脂蛋白膽固醇4.15 mmol/L,載脂蛋白B 1.51 g/L,同型半胱氨酸29.31 μmol/L。B超:肝左葉見約11.2 cm×5.9 cm片狀強回聲區,形態欠規整;肝尾狀葉見約2.3 cm×1.7 cm無回聲暗區;肝門部見約9.8 cm×8.3 cm低回聲區、邊界欠清。CT平掃:肝左葉見大片狀密度均勻、邊界清楚的低密度影,病灶無占位效應,內可見血管走行正常,呈相對高密度影,增強時病灶密度低于正常肝組織,診斷:局……