What are the differences between hepatic nodules and liver cancer in ultrasound imaging?
In general, the ultrasound imaging differences between liver nodules and liver cancer include morphological features, internal echogenicity, and blood flow characteristics. The specific analysis is as follows:
1. Morphological Features
Liver nodules typically appear round or oval with smooth, well-defined edges and are relatively small in size. In contrast, liver cancer lesions often present as irregular in shape, with blurred or poorly defined margins, and are generally larger.
2. Internal Echogenicity
The internal echogenicity of liver nodules is usually uniformly hypoechoic or isoechoic. Liver cancer, however, may exhibit heterogeneous internal echogenicity, sometimes including areas of hyperechogenicity.
3. Blood Flow Characteristics
Color Doppler ultrasound can be used to evaluate blood flow patterns in liver nodules and liver cancer. Liver nodules typically show uniform blood flow with relatively slow velocity. In liver cancer, blood flow patterns may be irregular and flow velocity faster.
Besides the above differences, growth rates also vary. Any localized lesion should prompt timely medical evaluation, diagnosis, comprehensive assessment, and appropriate treatment. Additionally, it is important to maintain healthy lifestyle habits and avoid adverse dietary and lifestyle factors that could negatively affect the liver.