Collaborative Stage for TNM 7 - Revised 11/08/2010  [ Schema ]

TongueBase

CS Extension

CodeDescriptionTNM 7 MapTNM 6 MapSS77 MapSS2000 Map
000In situ, intraepithelial, noninvasiveTisTisISIS
100Invasive tumor on one side confined to posterior one-third of tongue:
    Lamina propria
    Submucosa
^*LL
200Musculature, intrinsic or NOS^*LL
300Localized, NOS
Midline tumor
^*LL
400Base of tongue tumor crosses midline
Tumor of lingual tonsil on both sides
^*LL
405Stated as T1 with no other information on extension^*LL
410Stated as T2 with no other information on extension^*LL
500Anterior two-thirds of tongue for base of tongue
Base of tongue for lingual tonsil
Floor of mouth
Lower gingiva
^*RERE
530Sublingual gland^*RERE
600OBSOLETE DATA RETAINED V0200
Epiglottis, lingual surface assigned to T3 in AJCC 7, see code 640

Epiglottis, lingual (pharyngeal) surface
Glossoepiglottic fold
Glossopharyngeal fold
Lateral pharyngeal wall
Pharyngoepiglottic fold
Tonsillar pillars and fossae
Tonsils
Vallecula
ERROR*RERE
610Glossoepiglottic fold
Glossopharyngeal fold
Lateral pharyngeal wall
Pharyngoepiglottic fold
Tonsillar pillars and fossae
Tonsils
Vallecula
^*RERE
620Soft palate, inferior surface or NOS including uvula^*DRE
640Epiglottis, lingual surfaceT3*RERE
645640 + 620

Epiglottis, lingual surface plus soft palate
T3*DRE
650Stated as T3 with no other information on extensionT3*RERE
710Mandible for lingual tonsilT4aT4aRED
715710 + 620

Mandible plus soft palate
T4aT4aDD
720Mandible for base of tongueT4aT4aDD
740Medial pterygoid muscle
Hard palate
T4aT4aDD
750Musculature of tongue, extrinsic:
    Genioglossus
    Geniohyoid
    Hyoglossus
    Mylohyoid
    Palatoglossus
    Styloglossus
T4aT4aDD
760HypopharynxT4aT4aDD
770LarynxT4aT4aDD
775Stated as T4a with no other information on extensionT4aT4aRERE
780SkinT4bT4bDD
790Lateral nasopharynx
Lateral pterygoid muscle
Pterygoid plates
T4bT4bDD
795(770, 780, or 790) + 760T4bT4bDD
800OBSOLETE DATA REVIEWED AND CHANGED V0203
Recode involved structures to 620, 645, 715, 760, 790, or 795 as appropriate.

Contiguous extension to:
    Base of skull
    Carotid artery
    Hypopharynx
    Lateral nasopharynx
    Lateral pterygoid muscle
    Pterygoid plates
    Uvula
ERRORERRORERRORERROR
805Further contiguous extension including:
    Skull base
    Carotid artery (encased)
T4bT4bDD
810Stated as T4b with no other information on extensionT4bT4bDD
815Stated as T4 [NOS] with no other information on extensionT4NOST4NOSRERE
820OBSOLETE DATA CONVERTED V0200
See code 805

Further contiguous extension
ERRORERRORERRORERROR
950No evidence of primary tumorT0T0UU
999Unknown; extension not stated
Primary tumor cannot be assessed
Not documented in patient record
TXTXUU