Detection and Diagnosis of Small Hepatocellular Carcinoma: Techniques of Computed Tomography and Imaging Modalities
Hepatocellular carcinoma (HCC) is the predominant type of primary cancer accounting for over 90% of cancers in China . The incidence of HCC varies greatly from country to country and is particularly prevalent in coastal regions of China. It is the third cause of death in males and the fourth cause of death in females from malignant tumors. It is recognized that early detection is of great clinical importance since HCC has a high possibility of surgical resection, which is considered the best method of treatment with a 5-year survival rate (50%–70%) according to our statistics. In contrast, advanced cases of HCC have low resect-ability and a poor prognosis. Currently, detection of HCC has been improved significantly with many imaging modalities available and in common use, but for small HCC, (SHCC), and in particular for less than 1 cm lesions, there are problems in early detection and differential diagnosis. Our aim as radiologists is to carry out research work to detect HCC lesions as early as possible and as small as possible, i. e., less than 4.5 cm (Okuda), less than 2.0 cm, and even less than 1.0 cm in diameter.
KeywordsInferior Vena Cava Compute Tomo Halo Sign Small Hepatocellular Carcinoma Great Clinical Importance
Unable to display preview. Download preview PDF.
- 1.Zhou KR (1993) CT of the Abdomen, Shanghai, Shanghai Medical University Publishing House 7Google Scholar
- 5.Heiken JP, Wergman PE, Lee JKT et al. (1989) Detection of focal hepatic masses: prospective evaluation with CT, delayed CT, CTAP, and MR imaging. Radiology 1989: 174: 47–51Google Scholar
- 8.Kodo M, Tomity S, Tochio H et al. (1992) SHCC diagnosis with US angiography with intraarterial CO2 microbubbles. Radiology 182: 155–160Google Scholar