[Retracted] The Value of Gastric Cancer Staging by Endoscopic Ultrasonography Features in the Diagnosis of Gastroenterology

Table 1

TNM staging of gastric cancer.

Gastric cancer TNM staging
Primary tumor (T)
Tx	Primary tumor cannot be assessed
T0	No evidence of primary tumor
Tis	Carcinoma in situ: intraepithelial tumor, not invading the lamina propria
T1	Tumor invades lamina propria, muscularis mucosa, or submucosa
T2	Tumor invades the muscularis propria or subserosal layer
T3	The tumor penetrates the serosal layer but does not invade adjacent tissues
T4	Tumor invades adjacent tissues
Regional lymph nodes (N)
Nx	Regional lymph nodes cannot be assessed
N0	No regional lymph node metastasis
N1	There are 1-6 regional lymph node metastases
N2	There are 7-15 regional lymph node metastases
N3	There are more than 15 regional lymph node metastases
Distant metastasis (M)
M0	Yes
M1	No