Pathology of Liver and Biliary Neoplasms

Area of Science:

• Hepatology and Pathology
• Oncology

Background:

• Liver tumors encompass a range of neoplasms affecting the liver.
• Primary hepatic tumors arise from liver cells or bile ducts.
• Hepatocellular carcinoma (HCC) and cholangiocarcinoma (CCA) are the most prevalent primary liver malignancies.

Purpose of the Study:

• To provide a comprehensive overview of primary liver tumors.
• To highlight key molecular and histological features of HCC and CCA.
• To discuss diagnostic challenges and therapy-related changes in liver tumors.

Main Methods:

• Review of current literature on liver tumor classification, molecular features, and diagnostics.
• Focus on hepatocellular carcinoma and cholangiocarcinoma.
• Inclusion of pathologist's perspective on diagnostic challenges and assessment of treatment response.

Main Results:

• Detailed classification of primary hepatic tumors.
• Emphasis on molecular characteristics and histologic variants of HCC and CCA.
• Insights into diagnostic difficulties and practical approaches for pathologists.
• Discussion of therapy-related changes for treatment response evaluation.

Conclusions:

• Accurate diagnosis and understanding of molecular features are crucial for managing liver tumors.
• Pathologists play a key role in navigating diagnostic challenges.
• Assessment of therapy-related changes is vital for monitoring treatment efficacy in liver cancer.