From: The role of endoscopic ultrasound in the evaluation of rectal cancer
EUS STAGE | HISTOPATHOLOGICAL STAGING | THERAPY |
---|---|---|
UT1 | Invasion of mucosa and submucosa | Excision |
UT2 | Invasion of tumor into the muscularis propia | Excision |
UT3 | Invasion of tumor through the serosa | Pre-op chemoradiotherapy → resection of tumor |
UT4 | Invasion of tumor into adjacent organs | Pre-op chemoradiotherapy → resection of tumor → post-op chemotherapy |