Response options for “Tumor Extension”

___ No evidence of primary tumor

___ Tumor invades lamina propria

___ Tumor invades muscular layer

___ Tumor invades perimuscular connective tissue on the peritoneal side without serosal involvement

___ Tumor invades perimuscular connective tissue on the hepatic side without liver involvement

___ Tumor perforates serosa (visceral peritoneum)

___ Tumor directly invades the liver

___ Tumor directly invades other adjacent organs or structures# (specify): _____________________

___ Cannot be assessed

Gastrointestinal

Staging

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