Try to describe the diagnosis and common treatment methods of primary liver cancer.

① Determination of serum alpha-fetoprotein and continuous serum alpha-fetoprotein by radioimmunoassay? 400? Gram/liter; ② Ultrasound, CT, selective celiac artery or hepatic artery angiography, magnetic resonance imaging, radionuclide liver scanning and X-ray examination; ③ Fine needle aspiration cytology and exploratory laparotomy are feasible when necessary.

Common treatment methods: ① surgical resection; ② Transcatheter arterial chemoembolization; ③ Liquid nitrogen freezing, laser gasification, microwave coagulation and radiofrequency ablation; ④ Radiotherapy; ⑤ Local anhydrous alcohol injection therapy; ⑥ immunotherapy; ⑦ Chinese medicine treatment.