Review Article
Gallbladder Cancer in the 21st Century
| Stage | Definition |
| I | Tumour invades mucosa | II | Tumour invades mucosa + muscularis | III | Tumour invades mucosa + muscularis + subserosa | IV | Tumour invades all 3 layers of gallbladder + cystic lymph node | V | Tumour extends into liver bed or metastases |
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