Early microscopic hepatocellular carcinoma is difficult to detect, which can be manifested as persistent elevation of methemoglobin and not easily detected by intensive CT. Highly selective hepatic arteriography can detect early microscopic hepatocellular carcinoma and allow patients to receive timely treatment. CT does not show tumor Arteriography and embolization after micro hepatocellular carcinoma B ultrasound guided precise surgical resection Excised micro hepatocellular carcinoma Pathology confirmed primary hepatocellular carcinoma cells