Gallbladder cancer (GBC): 10-year experience at Memorial Sloan-Kettering Cancer Centre (MSKCC)

Area of Science:

• Oncology
• Surgical Oncology
• Gastroenterology

Background:

• Gallbladder cancer (GBC) incidence in the US is 1.2 per 100,000.
• This study analyzes presentation, treatment, and survival in a large GBC patient cohort.

Purpose of the Study:

• To examine patterns of presentation, adjuvant treatment, and survival in gallbladder cancer patients.
• To evaluate outcomes based on stage, incidental discovery, and surgical re-exploration.

Main Methods:

• Retrospective analysis of 435 GBC patients diagnosed between 1995-2005.
• Data extracted included demographics, stage, surgical management, pathology, and therapy.
• Survival curves were estimated using Kaplan-Meier and log-rank tests.

Main Results:

• 47% of GBC cases were incidentally discovered during laparoscopic cholecystectomy.
• Re-exploration identified residual disease in 73.5% of patients.
• Median survival was 10.3 months overall, significantly better for those with no residual disease after re-exploration (72 months) vs. residual disease (14.6 months).

Conclusions:

• Gallbladder cancer frequently presents incidentally, with high rates of residual disease upon re-exploration.
• Complete resection, indicated by no residual disease on re-exploration, is associated with improved survival.
• Prospective trials are needed to determine the efficacy of adjuvant therapy due to small sample sizes and heterogeneity.