Gallbladder cancer: epidemiology and outcome

Area of Science:

• Gastroenterology and Hepatology
• Surgical Oncology
• Epidemiology

Background:

• Gallbladder cancer is the most frequent biliary tract malignancy, comprising 80%-95% of these cancers.
• Carcinogenesis involves a metaplasia-dysplasia-carcinoma sequence, often progressing silently.
• Geographic and ethnic disparities exist, with higher incidence in American Indians and Southeast Asia.

Purpose of the Study:

• To provide a comprehensive review of the risks, management, and outcomes of primary gallbladder carcinoma.
• To highlight the importance of early diagnosis for improving patient prognosis.
• To discuss current and future strategies for prevention and early detection.

Main Methods:

• Review of epidemiological studies on gallbladder cancer incidence and risk factors.
• Analysis of current management strategies, including surgical interventions and adjuvant therapies.
• Exploration of diagnostic advancements and potential screening opportunities.

Main Results:

• Risk factors include age, female sex, congenital anomalies, genetic predisposition, gallstones, and chronic inflammation.
• Vague symptoms often lead to late diagnosis, advanced staging, and poor outcomes (5-year survival rate ~5%).
• Surgical management and adjuvant therapies have shown improved outcomes in the last decade.

Conclusions:

• Early diagnosis through improved imaging and incidental findings during cholecystectomy is imperative.
• Aggressive surgical management and adjuvant therapies can prolong survival.
• Future research should focus on diagnostic markers, predictive biomarkers, and environmental risk factors for primary prevention.