Gallbladder cancer: Clinical and pathological approach

Area of Science:

• Gastroenterology and Hepatobiliary Surgery
• Oncology
• Pathology

Background:

• Gallbladder cancer (GBC) exhibits significant geographical incidence variations, predominantly affecting middle-aged and elderly women.
• Identified risk factors include gallstones, chronic infection, and pancreaticobiliary maljunction, with ongoing debate regarding carcinogenesis from adenomyomatosis, porcelain gallbladder, and adenoma.
• Prognosis and surgical strategies for GBC are strongly influenced by T-stage, necessitating discrimination of favorable cases (T2/T3 lesions) for tailored treatment.

Purpose of the Study:

• To review the current understanding of gallbladder cancer epidemiology, risk factors, and carcinogenesis.
• To discuss the challenges in surgical strategy selection and prognostic factor identification for GBC.
• To emphasize the importance of interdisciplinary collaboration for rational GBC management.

Main Methods:

• Literature review of epidemiological data, risk factors, and proposed carcinogenesis theories for GBC.
• Analysis of the impact of tumor staging (T-stage) on surgical strategy and patient prognosis.
• Examination of investigated prognostic markers and their current limitations in predicting GBC progression.

Main Results:

• No definitive prognostic markers have been established despite investigation of numerous factors like tumor budding, Ki-67, p53, and signaling pathways.
• Accurate preoperative diagnosis of GBC is difficult, often leading to incidental discovery post-cholecystectomy.
• Surgical outcomes and strategies significantly vary based on the depth of tumor invasion (T-stage).

Conclusions:

• Effective management of gallbladder cancer requires a deep understanding of its varied incidence and risk factors.
• The lack of established prognostic markers complicates preoperative decision-making for GBC.
• Close collaboration between surgeons and pathologists is crucial for developing optimal surgical strategies and improving patient outcomes in GBC.