The manifestations of gallbladder cancer on MRI primarily include significant thickening of the gallbladder wall or a mass within the gallbladder. Generally, it appears as low signal on T1-weighted images and high signal on T2-weighted images. After enhancement, the lesion shows obvious enhancement. If the lesion is large, necrosis may occur internally. Since the gallbladder is close to the liver, if abnormal signals are found in the liver, intrahepatic metastasis should be considered, which further confirms the possibility of gallbladder cancer. Additionally, gallbladder cancer can also invade the nearby bile ducts, causing dilation of the bile ducts, as well as local or distant lymph node metastasis.