Clinical N
This input is used for staging
Notes
**Note 1:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in M (distant metastasis). **Note 2:** Regional lymph node involvement is rare. For this schema, if there is no mention of lymph node involvement clinically, assume that lymph nodes are negative. * Assign NX only when there is no available information on the extent of the patient's disease, for example when a lab-only case is abstracted from a biopsy report and no clinical history is available **Note 3:** For head, neck, and trunk primaries only, regional lymph nodes include bilateral or contralateral nodes. **Regional lymph nodes by primary site** **Head and Neck (C470, C490)** Cervical Lip Facial, NOS Buccinator (buccal) Nasolabial Mandibular Submandibular (submaxillary) Submental Parotid, NOS Infra-auricular Preauricular Eyelid/canthus Facial, NOS Buccinator (buccal) Nasolabial Mandibular Submandibular (submaxillary) Submental Parotid, NOS Infra-auricular External ear and auditory canal: Mastoid (posterior, retro-auricular) (occipital) Preauricular Face, Other (cheek, chin, forehead, jaw, nose, and temple): Facial, NOS Buccinator (buccal) Nasolabial Mandibular Submandibular (submaxillary) Submental Parotid, NOS Infra-auricular Preauricular Scalp Mastoid (posterior, retro-auricular) (occipital) Parotid, NOS Infra-auricular Preauricular Spinal accessory (posterior cervical) Neck Axillary Mastoid (posterior, retro-auricular) (occipital) Mandibular Parotid, NOS Infra-auricular Preauricular Spinal accessory (posterior cervical) Submental Supraclavicular (transverse cervical) **Upper limb and shoulder (C471, C491)** Axillary Spinal accessory for shoulder Epitrochlear for hand/forearm **Lower limb and hip (C472, C492)** Femoral (superficial inguinal) Popliteal for heel and calf **Thorax (C473, C493)** Hilar (bronchopulmonary) (proximal lobar) (pulmonary root) Mediastinal **Abdomen (C474, C494)** Celiac Iliac Para-aortic **Pelvis (C475, C495)** Deep inguinal, NOS Rosenmuller or Cloquet node Superficial inguinal (femoral) **Trunk (C476, C496)** Axillary Cervical Internal mammary Supraclavicular (transverse cervical) Superficial inguinal (femoral)NAACCR Item
NAACCR #950| Clinical N | Clinical N Display | Description | Registrar Notes |
|---|---|---|---|
| cX | cNX | Regional lymph nodes cannot be assessed | Clinical classification criteria met, evaluation done: Physician unable to assess N Regional lymph node involvement cannot be determined or findings inconclusive Physician assigns cNX, no other information available to determine N |
| c0 | cN0 | No regional lymph node metastasis | |
| c1 | cN1 | Regional lymph node metastasis | Regional lymph nodes, NOS Lymph nodes, NOS Stated as N1 |
| 88 | 88 | Not applicable | Primary site/histology not TNM defined Death certificate only (DCO) case |
| <BLANK> | BLANK | See Registrar Notes | Clinical classification criteria not met Clinical classification criteria met, evaluation done: No information about diagnostic workup Results not documented in record Tumor first detected on surgical resection (no clinical workup) Evidence of metastatic disease [(cM1) or (pM1)], no other workup Only Clinical Stage Group documented (no T, N, or M information available) |