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T and N Integer Score (TANIS) Staging System for Squamous Cell Carcinoma of the Oral Cavity

Description

Jones et al proposed the addition of T and N values from the TNM classification for head and neck cancers to give a TANIS (T and N Integer Score) stage. Synderman and Wagner found this better than the TNM stage for predicting 2 year disease free survival in patients with squamous cell carcinoma of the oral cavity.


 

TNM classification:

• T codes (simplified): 1, 2, 3, 4

• N codes (simplified): 0, 1, 2, 3

 

TANIS =

= (T category from TNM) + (N category from TNM)

 

Interpretation:

• minimum TANIS: 1 (T0, N0)

• maximum TANIS: 7 (T4, N3)

 

TANIS

2 year disease free survival

1

70%

2

77%

3

50%

4

40%

5

32%

6

23%

7

40%

 

modified TANIS

2 year disease free survival

1, 2

74%

3

50%

4

40%

5, 6, 7

30%

 


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