Portacaval shunts have been performed for recent variceal hemorrhage in cirrhotic patients without the physician suspecting that a hepatoma was responsible for the portal hypertension.

• 在肝硬化患者的门静脉与腔静脉的吻合分流处新近出现的静脉曲张出血症状，医师却没有怀疑到这是肝细胞瘤引起血压过度紧张造成的。