TNM classification

Question 1

Tx

Answer 1

tumour in sputum but not to be assesed in imaging

Question 2

T0

Answer 2

no evidence of tumor

Question 3

Tis

Answer 3

carcinoma in situ

Question 4

T1

Answer 4

</ 3 cm surrounded by lung/visceral pleura

Question 5

T1a(mi)

Answer 5

minimally invasive carcinoma

Question 6

T1a

Answer 6

</ 1cm

Question 7

T1b

Answer 7

> 1 to</ 2 cm

Question 8

T1c

Answer 8

> 2 to </3cm

Question 9

T2

Answer 9

> 3 to </5 cm or involvement of main bronchus without carina

Question 10

T2a

Answer 10

> 3 to </4cm

Question 11

T2b

Answer 11

> 4 to </5 cm

Question 12

T3

Answer 12

> 5 to </ 7cm in greatest dimension

Question 13

T4

Answer 13

> 7cm in greatest dimension or invasion of diaphragm

Question 14

N1

Answer 14

ipsilateral peribronchial a/ hilar nodes A intrapulmonary nodes

Question 15

N2

Answer 15

ipsilateral mediastinal a/or subcarinal nodes

Question 16

N3

Answer 16

contralateral mediastinal /hilar,ipsilat/contralat scalene/supraclavicular

Question 17

M1

Answer 17

distant metastasis

Question 18

M1a

Answer 18

tumour in contralateral lung/malignant effusion

Question 19

M1b

Answer 19

single extrathoracic metastasis,including single non-regional LM

Question 20

M1c

Answer 20

multiple extrathoracic metastases in 1 or more organs