Lymph node spread from carcinoma of the gallbladder

Area of Science:

• Surgical Oncology
• Gastrointestinal Oncology
• Pathology

Background:

• Lymph node metastasis is a primary progression pathway and prognostic indicator in gallbladder carcinoma (GBC).
• Understanding the patterns and prevalence of lymph node spread is crucial for effective GBC management.

Purpose of the Study:

• To determine the prevalence of lymph node metastases in patients with resected advanced GBC.
• To evaluate the efficacy of radical surgery in treating GBC with lymph node metastasis.

Main Methods:

• Histopathological examination of lymph node metastases in 111 patients undergoing radical surgery for GBC.
• Utilized the TNM staging system from the American Joint Committee on Cancer for classification.

Main Results:

• No lymph node involvement was observed in 15 patients with pT1 tumors.
• 60 of 96 patients with pT2-4 tumors exhibited lymph node metastases, with pericholedochal and cystic nodes being most frequently affected.
• Tumor depth significantly correlated with lymph node involvement; pT3-4 tumors showed higher rates (79%) than pT2 tumors (46%).
• 5-year survival rates were comparable between N0 (66%) and N1 (53%) groups for pT2-4 tumors, but N2 disease indicated a worse prognosis.

Conclusions:

• Cystic and pericholedochal lymph nodes represent the initial sites of GBC spread.
• The extent of lymph node metastasis is significantly influenced by the primary tumor's invasion depth.
• Radical surgery can achieve a >50% cure rate for GBC cases with limited lymph node involvement.