Microvascular invasion in hepatocellular carcinoma

Area of Science:

• Hepatobiliary Medicine
• Diagnostic Imaging
• Oncology

Background:

• Microvascular invasion (MVI) is a significant prognostic indicator in hepatocellular carcinoma (HCC).
• Accurate prediction of MVI impacts treatment strategies and patient outcomes.
• Early identification of MVI is essential for effective clinical management.

Purpose of the Study:

• To review and highlight clinicopathologic and imaging findings predictive of microvascular invasion in HCC.
• To enhance the non-invasive detection of MVI in HCC patients.
• To correlate imaging characteristics with the presence of MVI.

Main Methods:

• Literature review of studies on hepatocellular carcinoma and microvascular invasion.
• Analysis of clinicopathologic and imaging features associated with MVI.
• Synthesis of data on imaging findings from modalities including positron emission tomography-computed tomography (PET-CT).

Main Results:

• Several imaging findings suggest the presence of MVI in HCC.
• These include capsule disruption, irregular tumor margins, and peritumoral enhancement.
• Increased tumor size, multifocal nature, and elevated glucose metabolism on PET-CT are also indicative of MVI.

Conclusions:

• Typical imaging findings can reliably predict microvascular invasion in hepatocellular carcinoma.
• Non-invasive prediction of MVI can guide clinical decision-making.
• Further research may refine imaging criteria for MVI detection in HCC.