Summary of Changes
The T and N classifications have been simplified in an effort to separate locally invasive tumors into potentially resectable (T3) and unresectable (T4).
There is no longer a distinction between T3 and T4 based on the depth of liver invasion.
Lymph node metastasis is now classified as Stage IIB, and Stage IIA is reserved for large, invasive tumors (resectable), without lymph node metastasis.
Stage grouping has been changed to allow Stage III to signify locally unresectable disease and Stage IV to indicate metastatic disease.
KeywordsCystic Duct Papillary Carcinoma Gallbladder Cancer Small Cell Carcinoma Gallbladder Carcinoma
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