DATA FORM FOR CANCER STAGING - PHARYNX
Form # 785-1-016
| CLIN | PATH | DEFINITIONS | |||
| PRIMARY TUMOR (T) | |||||
| TX | Primary tumor cannot be assessed | ||||
| T0 | No evidence of primary tumor | ||||
| Tis | Carcinoma in situ | ||||
| OROPHARYNX | |||||
| 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 | Tumor invades adjacent structures, e.g., through cortical bone, soft tissues of neck, deep (extrinsic) muscle of tongue | ||||
| NASOPHARYNX | |||||
| T1 | Tumor limited to one subsite of nasopharynx | ||||
| T2 | Tumor invades more than one subsite of nasopharynx | ||||
| T3 | Tumor invades nasal cavity and/or oropharynx | ||||
| T4 | Tumor invades skull and/or cranial nerve(s) | ||||
| HYPOPHARYNX | |||||
| T1 | Tumor limited to one subsite of hypopharynx | ||||
| T2 | Tumor invades more than one subsite of hypopharynx or an adjacent site, without fixation of hemilarynx | ||||
| T3 | Tumor invades more than one subsite of hypopharynx or an adjacent site, with fixation of hemilarynx | ||||
| T4 | Tumor invades adjacent structures, e.g., cartilage or soft tissues of neck | ||||
| LYMPH NODE (N) | |||||
| NX | Regional lymph nodes cannot be assessed | ||||
| N0 | No regional lymph node metastasis | ||||
| N1 | Metastasis in a single ipsilateral lymph node, 3 cm or less in greatest dimension | ||||
| N2 | Metastasis in a single ipsilateral lymph node, more than 3 cm but not more than 6 cm in greatest dimension, or multiple ipsilateral lymph nodes, none more than 6 cm in greatest dimension, or bilateral or contralateral lymph nodes, none more than 6 cm in greatest dimension | ||||
| N2a | Metastasis in a single ipsilateral lymph node more than 3 cm but not more than 6 cm in greatest dimension | ||||
| N2b | Metastasis in multiple ipsilateral lymph nodes, none more than 6 cm in greatest dimension | ||||
| N2c | Metastasis in bilateral or contralateral lymph nodes, none more than 6 cm in greatest dimension | ||||
| N3 | Metastasis in a lymph node more than 6 cm in greatest dimension | ||||
| DISTANT METASTASIS (M) | |||||
| MX | Presence of distant metastasis cannot be assessed | ||||
| M0 | No distant metastasis | ||||
| M1 | Distant metastasis | ||||
| CLIN | PATH | STAGE GROUPING | |||
| 0 | Tis | N0 | M0 | ||
| I | T1 | N0 | M0 | ||
| II | T2 | N0 | M0 | ||
| III | T3 | N0 | M0 | ||
| T1 | N1 | M0 | |||
| T2 | N1 | M0 | |||
| T3 | N1 | M0 | |||
| IV | T4 | N0 | M0 | ||
| T4 | N1 | M0 | |||
| Any T | N2 | M0 | |||
| Any T | N3 | M0 | |||
| Any T | Any N | M1 | |||
THE FINAL STAGE GROUPING (CLINICAL & PATHOLOGICAL) IS THE RESPONSIBILITY OF THE ATTENDING PHYSICIAN.
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