Assessment of "periportal cancer spread pattern" using multidetector row CT

我们通过多排CT （multidetector row CT， MDCT）上1mm切片的多平面重构来评估“门静脉周围癌扩散模式（PCSP）”。结果显示，24例肝内、肝门胆管癌中PCSP阳性9例（38%），其中肝门胆管癌表现为广泛的PCSP，从亚节段水平到肝外门静脉周围。对于肝外胆管癌，从门静脉周围区到右侧腹腔神经节的肝后丛在PCSP检测中发挥了重要作用，MDCT显示沿神经通路的脂肪组织衰减增加。

We evaluated the “periportal cancer spread pattern (PCSP)”by using multiplanar reformations of 1-mm slices on multidetector row CT (MDCT). Results show that nine (38%) out of 24 patients with intrahepatic and hilar cholangiocarcinomas were positive for PCSP, wherein those with hilar cholangiocarcinoma especially showed extensive PCSP from the subsegmental level to the extrahepatic periportal area. Regarding extrahepatic cholangiocarcinoma, the posterior hepatic plexuses which run from the periportal area to the right celiac ganglion assume a large role in PCSP detection, whereby MDCT reveals the increased attenuation of fat tissue along the nerve routes.