Incidentally-discovered gallbladder cancer: When, why and which reoperation?

Area of Science:

• Oncology
• Surgical Pathology
• Gastroenterology

Background:

• Gallbladder cancer is rare with a poor prognosis, frequently diagnosed incidentally after cholecystectomy.
• Early dissemination occurs through lymphatic, peritoneal, endobiliary, and hematogenous routes.
• Intra-operative diagnosis is made in only 25% of cases, highlighting the need for routine specimen examination.

Purpose of the Study:

• To review the diagnostic and prognostic factors of gallbladder cancer.
• To evaluate treatment strategies and potential improvements in surgical practices.
• To identify factors influencing survival in incidentally discovered gallbladder cancers.

Main Methods:

• Review of diagnostic methods, including intra-operative specimen examination.
• Analysis of prognostic factors such as age, TNM stage, surgical complications, and resection margins.
• Evaluation of surgical treatment options, including simple and extended cholecystectomy.
• Assessment of the role of neoadjuvant/adjuvant therapies.

Main Results:

• Five-year survival for incidentally discovered gallbladder cancer is 28%.
• Key prognostic factors include age, TNM stage, gallbladder perforation, and suboptimal resection.
• R0 surgery (complete resection) is the only potentially curative treatment; extent depends on tumor stage.
• Laparoscopic cholecystectomy's impact on survival is debated.
• Neoadjuvant or adjuvant chemotherapy and radiotherapy have not demonstrated effectiveness post-curative resection.

Conclusions:

• Improving surgical practices, such as routine intra-operative specimen review and preventing bile spillage, is crucial.
• Early re-intervention for optimal resection can improve outcomes.
• While R0 resection is key, the extent of surgery must be tailored to the tumor stage.