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 nodes include bilateral and contralateral involvement of named nodes. **Note 3:** Size of the largest metastasis in a lymph node must be known to assign N. You may use a physician’s statement of the N category if this is the only information in the medical record. * If the size of the metastasis is not documented, determine the size of the largest involved lymph node as documented clinically * If the size of the lymph node(s) cannot be determined, assign N1 * Do not code the size of any node(s) assigned in M (distant metastasis) **Regional lymph nodes** Renal Pelvis Aortic, NOS Lateral (lumbar) Para-aortic Periaortic Paracaval Renal hilar Retroperitoneal, NOS Regional lymph node, NOS Ureter Iliac, NOS Common External Internal (hypogastric), NOS Obturator Lateral aortic (lumbar) Paracaval Pelvic, NOS Periureteral Renal hilar Retroperitoneal, NOS

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	Metastasis in a single lymph node 2 cm or less in greatest dimension	Single or multiple nodes not stated, size not stated Regional lymph node, NOS Lymph nodes, NOS Stated as N1
c2	cN2	Metastasis in a single lymph node more than 2 cm but not more than 5 cm in greatest dimension, OR Multiple lymph nodes, none more than 5 cm in greatest dimension	Single or multiple nodes not stated, size stated and greater than 2 cm but less than or equal to 5 cm Stated as N2
c3	cN3	Metastasis in a lymph node more than 5 cm in greatest dimension	Single or multiple nodes not stated, size stated and greater than 5 cm Stated as N3
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)