Intrahepatic cholangiocarcinoma: resectability, recurrence pattern, and outcomes

Area of Science:

• Hepatobiliary Surgery
• Surgical Oncology
• Gastroenterology

Background:

• Intrahepatic cholangiocarcinoma (IHC) is a rare primary liver cancer originating from bile ducts.
• Surgical resection is the most effective curative treatment for IHC.
• Limited data exists on the resectability, outcomes, and recurrence patterns of IHC.

Purpose of the Study:

• To evaluate the resectability rates, survival outcomes, and recurrence patterns of patients with intrahepatic cholangiocarcinoma.
• To identify factors influencing survival and recurrence after surgical resection for IHC.

Main Methods:

• A prospective database was used to identify 53 patients with pure IHC between March 1992 and September 2000.
• Patients underwent surgical exploration, and data on demographics, tumor characteristics, and outcomes were analyzed.
• Exclusion criteria included mixed hepatocellular and cholangiocarcinoma tumors.

Main Results:

• The overall resectability rate was 62% (33 of 53 patients).
• Median survival was significantly longer for resected patients (37.4 months) compared to biopsy-only patients (11.6 months).
• Predictive factors for poor survival included vascular invasion, positive margins, and multiple tumors. Recurrence occurred in 61% of resected patients, with local/regional sites being most common.

Conclusions:

• Complete resection of intrahepatic cholangiocarcinoma improves survival but is associated with a high rate of recurrence.
• Factors like multiple tumors, tumor size, and vascular invasion predict recurrence.
• Understanding recurrence patterns, predominantly local/regional, can inform future adjuvant therapy strategies for IHC.