Gallbladder cancer--a comprehensive review.

AIM

Gallbladder cancer is the fifth most common cancer involving the gastrointestinal tract, but it is the most common malignant tumour of the biliary tract worldwide. The percentage of patients diagnosed to have gallbladder cancer after simple cholecystectomy for presumed gallbladder stone disease is 0.5-1.5%. This tumour is traditionally regarded as a highly lethal disease with an overall 5-year survival of less than 5%. The marked improvement in the outcome of patients with gallbladder cancer in the last decade is because of the aggressive radical surgical approach that has been adopted, and improvements in surgical techniques and peri-operative care. This article aims to review the current approach to the management of gallbladder cancer.

METHODS

A Medline, PubMed database search was performed to identify articles published from 1990 to 2007 using the keywords 'carcinoma of gallbladder', 'gallbladder cancer', 'gallbladder neoplasm' and 'cholecystectomy'.

RESULTS AND CONCLUSIONS

The overall 5-year survival for patients with gallbladder cancer who underwent Ro curative resection was reported to range from 21% to 69%. Laparoscopic cholecystectomy is absolutely contraindicated when gallbladder cancer is known or suspected pre-operatively. Patients with a pre-operative suspicion of gallbladder cancer should undergo open exploration and cholecystectomy after proper pre-operative assessment. For patients whose cancer is an incidental finding on pathological review, a second radical resection is indicated except for Tis and T1a disease. There is still controversy for the optimal management of T1b disease. Although the role of surgery for advanced disease remains controversial, patients with advanced gallbladder cancer can benefit from radical resection, provided a potentially curative Ro resection is possible. There is still no effective adjuvant therapy for gallbladder cancer.