胆囊壁炎性改变MR征象与病理对照.ppt

,胆囊壁炎性改变MR征象与病理对照,Type 1 增厚的胆囊壁分界清楚，厚薄不一 Type 2 两层增厚的胆囊壁分界不清 Type 3 壁全层增厚边界不清 Type 4 局部胆囊壁全层缺损伴有腔内膜状物,公众号：影像医学英文阅读札记,Chronic cholecystitis in a 45-year-old man. a Oblique HASTE (TE=95 ms) image for MR cholangiography shows thickened gallbladder wall with two layers. The margin of the thickened wall is discrete. The inner layer with dark signal intensity is uniform and thin. The outer layer is thick with high signal intensity. b Photomicrograph (original magnification, 40; HE stain) shows intact mucosal and muscular layers and serosal edema with infiltrations of mononuclear inflammatory cells,译：45岁男性慢性胆囊炎。斜冠状位HASTE（TE95ms）图像显示胆囊壁增厚为2层。增厚壁的边缘是分离的。低信号内层均匀且薄。外层厚，且信号强度高。B 病理图像（原始放大倍数40；He染色）显示完整的粘膜和肌肉层和浆膜水肿伴有单核炎性细胞浸润 注：该类型常见于慢性胆囊炎,公众号：影像医学英文阅读札记,Acute cholecystitis in a 71-year-old woman. a Oblique HASTE (TE=95 ms) image for MR cholangiography shows thickened gallbladder wall with two layers. The margin of the thickened wall is ill-defined. The inner layer is broadened and focally interrupted. The outer layer is heterogeneous with intermediate signal intensity. b Photomicrograph (original magnification, 40;HE stain) shows sloughed mucosa (arrows) and a split muscular layer with hemorrhage and extensive acute inflammatory cell infiltrations,译：一位71岁的女性急性胆囊炎。斜冠状位HASTE（TE95ms）图像显示胆囊壁增厚2层。厚壁的边缘是不清晰。内层增厚且中断。外层呈混杂中等信号强度。b Photomicrograph（原始放大倍数40；HE染色显示粘膜松弛（箭头）和肌层撕裂伴有出血和广泛的急性炎性细胞浸润 注：该类型常见于急性胆囊炎,公众号：影像医学英文阅读札记,Acute gangrenous cholecystitis in a 45-year-old man. a Oblique HASTE (TE=95 ms) image for MR cholangiography shows thickened gallbladder wall without layering. The margin of the thickened wall is ill-defined. The wall is homogeneously hypointense. b Photomicrograph (original magnification, 40; HE stain) shows sloughed mucosa and extensive hemorrhagic necrosis involving the entire wall,译：急性坏疽性胆囊炎在一个45岁的男子。MR胆道造影的斜冠状位（TE95 ms）图像：胆囊壁增厚，无分层。增厚的壁边界不清。胆囊壁呈均匀低信号。病理图像（原始放大倍数40；HE）染色显示粘膜脱落和广泛出血坏死，涉及壁的全层 注：该类型常见于急性坏疽胆囊炎,公众号：影像医学英文阅读札记,译：一名34岁糖尿病男性患者的坏疽性胆囊炎。（A）轴位T1-梯度回声MRI显示过度扩张的胆囊与高信号胆囊壁（细箭头）提示出血; （B）T2-脂肪饱和像显示胆囊壁全层缺损（箭头），腔内膜状物（粗箭头）和胆囊周围积液。（C）DWI和（D）ADC图，显示GB提示化脓性胆汁内的扩散限制,译：62岁 男性患有坏疽性胆囊炎。冠状位T2WI显示水肿的胆囊伴多个低信号结石（箭头），伴有线性低信号腔内膜状物（虚线箭头）和壁的坏死（粗箭头）,intraluminal membranes（腔内膜状物，linear irregular density/signal/echogenic structures in the GB lumen）：Previous studies on GC have shown that the presence of intraluminal membranes is highly specific for GC, which pathologically suggests sloughed, ulcerated GB mucosa 译：以往对GC（坏疽性胆囊炎）的研究表明，腔内膜的存在对GC具有高度特异性，这在病理学上提示脱落的，溃疡的胆囊粘膜,公众号：影像医学英文阅读札记,参考文献,Bennett GL, Rusinek H, Lisi V, Israel GM, Krinsky GA, Slywotzky CM, et al. CT findings in acute gangrenous cholecystitis. AJR Am J Roentgenol. 2002;178:27581. Jung S E, Lee J M, Lee K, et al. Gallbladder wall thickening: MR imaging and pathologic correlation with emphasis on layered patternJ. European Radiology, 2005, 15(4):694-701. Altun E, Semelka RC, Elias J Jr, et al. Acute cholecystitis: MR findings and differentiation from chronic cholecystitis.J. Radiology, 2007, 244(1):174-83. Sureka B, Rastogi A, Mukund A, e