Diagnosing Borderline Hepatic Nodules in Hepatocarcinogenesis: Imaging Performance

Area of Science:

• Hepatology
• Radiology
• Oncology

Background:

• Hepatocellular carcinoma (HCC) develops through a multistep process.
• Early detection of HCC in cirrhotic livers is crucial for patient outcomes.

Purpose of the Study:

• To describe the pathologic and radiologic features of small nodular lesions.
• To illustrate the progression of imaging changes from dysplastic nodules to HCC.

Main Methods:

• Review of imaging features of small nodular lesions in cirrhotic livers.
• Correlation of imaging findings with pathologic characteristics.
• Analysis of imaging surveillance protocols for HCC.

Main Results:

• Nodules >1 cm on ultrasound warrant further diagnostic imaging.
• Characteristic imaging findings (arterial hypervascularity with portal venous washout) confirm HCC.
• Ultrasound surveillance can monitor nodules <1 cm every 3-6 months.

Conclusions:

• Diagnostic imaging, including contrast-enhanced CT and MRI, is essential for evaluating liver nodules.
• Contrast-enhanced ultrasound serves as an alternative diagnostic tool.
• Management strategies differ based on nodule size and imaging characteristics.