Site icon Egeus – European Group for Endoscopic Ultrasonography

Duodenum

DUODENUM 
T: primary tumor
TXPrimary tumor cannot be assessed
T0No evidence of primary tumor
TisCarcinoma in situ
T1aTumor invades lamina propria or muscularis mucosae
T1bTumor invades submucosa
T2Tumor invades muscularis propria
T3Tumor invades subserosa or non peritonealized perimuscular tissue
T4Tumor perforates visceral peritoneum or directly invades other adjacent structures (retroperitoneum, pancreas)
N: regional lymph nodes
NXRegional lymph nodes cannot be assessed
N0No regional lymph node metastasis
N1Metastasis in 1?2 regional lymph nodes
N2Metastasis in 3 or more regional lymph nodes
M: distant metastasis
M0No distant metastasis
M1Distant metastasis
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