In general, the diagnosis of liver cancer mainly through the following three ways.1 tumor markers detectionThe detection of tumor markers is
In general, the diagnosis of liver cancer mainly through the following three ways.
1 tumor markers detection
The detection of tumor markers is the serological detection, and the detection of tumor markers of liver cancer is mainly to detect AFP. At present, AFP is one of the most specific methods for the diagnosis of hepatocellular carcinoma, the positive rate is 60%-90%. No evidence of liver cancer, AFP positive or quantitative >, or 500ng/ml for more than a month, and can be excluded from the diagnosis of liver cancer, such as pregnancy, active liver cancer, genital embryonal tumors.
Gamma glutamyl aminopeptidase, alkaline phosphatase and lactate dehydrogenase are also markers for the detection of tumor markers in liver cancer.
2 imaging examination
Imaging examination can be divided into B ultrasound, CT, angiography, magnetic resonance imaging.
Ultrasound can show the tumor size, shape, location and the hepatic vein or portal vein with no thrombus, rate of up to 84% with the diagnosis, found 2 cm in diameter or smaller lesions, is a non-invasive method currently has good localization value.
CT: high resolution, can detect about 1 cm in diameter around the early liver cancer, the use of enhanced scanning helps to identify hemangioma. The diagnostic coincidence rate of liver cancer is as high as 90%.
Angiography: rich in vascular tumor, can display the diameter of 0.5 ~ 1 cm lesions, the diagnostic accuracy rate of up to 90%. Can determine the lesion location, size and distribution, especially the location diagnosis of small hepatocellular carcinoma is currently the best in a variety of inspection methods.
Magnetic resonance imaging: diagnostic value of CT and similar, can obtain the transverse, coronal and sagittal images of benign and malignant liver lesions, especially with hepatic hemangioma identification is better than CT, and there is no need to display the enhancement of hepatic and portal vein.
3 liver biopsy
Biopsy: liver biopsy needle aspiration cytology has certain diagnostic significance, the current use of guided fine needle aspiration in type B ultrasound, can improve the positive rate, but due to hemorrhage, tumor rupture and needle metastasis risk.