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Pancreatic neoplasia: AJCC TNM staging system of pancreatic cancer
Abstract
The AJCC TNM staging system uses three basic descriptors that are then grouped into stage categories.
The first component is “T”, which describes the extent of the primary tumor
The next component is “N”, which describes the absence or presence and extent of regional lymph node metastasis
The third component is “M”, which describes the absence or presence of distant metastasis
The final stage groupings (determined by the different permutations of “T”, “N”, and “M”) range from stage 0 through stage IV