Staging for Oral Cavity Cancer

Oral cavity tumors are staged as follows:

TX Primary tumor cannot be assessed
T0 No existence of primary tumor
Tis Carcinoma in situ
T1 Tumor 2 cm or less in greatest dimension
T2 Tumor more than 2 cm but not more than 4 cm in greatest dimension.
T3 Tumor more than 4 cm in greatest dimension.
T4 (lip) Tumor invades adjacent structures (e.g. through cortical bone, tongue, or skin of neck).
T4 (oral cavity) Tumor invades adjacent structures (e.g. through cortical bone, into deep muscle of tongue, maxillary sinus, or skin).

Publication Review By: Stanley J. Swierzewski, III, M.D.

Published: 14 Aug 1999

Last Modified: 18 Sep 2015