NCCN Guidelines for Patients
Esophageal Cancer, Version 1.2016
T = Tumor
The T score tells into which tissues the primary tumor
has grown. Esophageal cancers first grow through the
wall of the esophagus and then into nearby structures.
T scores for esophageal cancer include:
means there are abnormal cells that
haven’t grown beyond the epithelium.
tumors have invaded the lamina propria,
muscularis mucosae, or submucosa..
T1a tumors have invaded the lamina
propria or muscularis mucosae.
T1b tumors have invaded the
tumors have invaded the muscularis
tumors have invaded the adventitia.
tumors have invaded nearby tissues.
tumors have invaded the
outer lining of the lungs (pleura),
heart (pericardium), or abdomen
(peritoneum), or the diaphragm and
can be treated by surgery.
tumors tumors have invaded
tissues, such as the trachea, that
can’t be treated with surgery.
Areas of T4 growth
The primary tumor may grow
through the esophageal wall
and into nearby organs. Nearby
structures include the windpipe
(trachea), lining of the lungs, left
bronchus, diaphragm, spine, lining
of the heart, aorta and other blood
vessels. Tumors that have grown
into nearby structures are rated T4.
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