tnm classification of tumours
1
T Primary tumour TX Primary tumour cannot be assessed TO No evidence of primary tumour Tis Carcinoma in situ T1 Tumour 2cm or less in greatest dimension T2 Tumour >2cm but <4cm T3 Tumour >4cm in greatest dimension T4 Tumour invades adjacent structures N Regional lymphnodes NX Regional lymphnodes cannot be assessed NO No regional lymphnode metastasis N1 Metastasis in a single epsilateral lymphnode 3cm or less in greatest dimension N2 Metastasis in single or multiple ipsilateral or bilateral lymphnodes N2a • Metastasis in single ipsilateral lymphnode >3cm but <6cm • Multiple ipsilateral lymphnodes <6cm • Bilateral lymphnodes <6cm N2b Metastasis in multiple M Distant metastasis MX Presence of distant metastasis cannot be assessed MO No distant metastasis M1 Distant metastasis
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Transcript of tnm classification of tumours
T Primary tumour
TX Primary tumour cannot be assessed
TO No evidence of primary tumour
Tis Carcinoma in situ
T1 Tumour 2cm or less in greatest dimension
T2 Tumour >2cm but <4cm
T3 Tumour >4cm in greatest dimension
T4 Tumour invades adjacent structures
N Regional lymphnodes
NX Regional lymphnodes cannot be assessed
NO No regional lymphnode metastasis
N1 Metastasis in a single epsilateral lymphnode 3cm or less in greatest dimension
N2 Metastasis in single or multiple ipsilateral or bilateral lymphnodes
N2a • Metastasis in single ipsilateral lymphnode >3cm but <6cm
• Multiple ipsilateral lymphnodes <6cm• Bilateral lymphnodes <6cm
N2b Metastasis in multiple ipsilateral lymphnodes <6cm
N2c Metastasis in bilateral lymphnodes <6cm
N3 Metastasis in lymphnodes >6cm
M Distant metastasis
MX Presence of distant metastasis cannot be assessed
MO No distant metastasis
M1 Distant metastasis
