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(1) Staging of liver cancer
T: primary tumor, N: lymph node, M: metastasis
T1: Solitary tumor of the liver, the largest tumor diameter is 2 cm or less, without vascular invasion
T2: Those who do not meet one of the three conditions in T1
T3: Those who do not meet 2 of the 3 conditions in T1
Both T2 and T3 include multiple tumors but are limited to one lobe
T4: Multiple tumors with more than one lobe or tumor involving the main branch of the portal vein or hepatic vein
N: regional lymph node; N0: no regional lymph node metastasis; N1: regional lymph node metastasis
M: distant metastasis; M0: no distant metastasis; M1: distant metastasis
(2) Imaging methods and selection of liver cancer
The imaging methods of liver cancer include ultrasound, CT, MRI, angiography, nuclear scan, PET,
The liver is one of the most commonly used organs for examination since whole body CT scans are used in clinical practice
MRI is another major progress in the field of imaging diagnosis after CT.
(3) Imaging manifestations of liver cancer
A hypoechoic halo (50-70%) can be seen around the tumor, and the thickness of the halo is about 1/10 of the tumor.
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