Clinical N

This input is used for staging

Notes

**Note 1:** When both the Federation Internationale de Gynecologie et d'Obstetrique (FIGO) stage and regional lymph node detail are available, use the regional lymph node detail in preference to a statement of FIGO stage - see Registrar notes. * If the only information is FIGO III [NOS], IIIA, IIIB, IIIC, or IVA, assign the appropriate stage and leave clinical T, N, and M blank. If the only information is FIGO stage IVB, leave T and N blank and see M **Note 2:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in M (distant metastasis). **Note 3:** Assign N1 [NOS] if regional lymph nodes are involved but the number of nodes involved is unknown. **Note 4:** Assign the appropriate N category based on the number of positive nodes Deep inguinal, NOS Femoral Inguinal NOS Inguinofemoral (groin) Node of Cloquet or Rosenmuller (highest deep inguinal) Superficial inguinal (femoral) Regional lymph node(s), NOS Lymph nodes, 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 determine or findings inconclusive
Physician assigns cNX, no other information available to determine N
c0 cN0 No regional lymph node metastasis Only information available is FIGO Stage I [NOS], IA, IB, II
c1 cN1 Regional lymph node metastasis with the following features Note: N1 has subcategories of N1a and N1b. Assign N1 only when there is no information available to assign one of the subcategories

1 or 2 regional lymph node(s) positive (or number positive unknown) and size of metastasis not given

Stated as N1 [NOS]
c1A cN1a 1-2 lymph node metastasis each less than 5 mm Stated as N1a
c1B cN1b 1 lymph node metastasis 5 mm or greater Stated as N1b
c2 cN2 Regional lymph node metastasis with the following features Note: N2 has subcategories of N2a and N2b. Assign N2 only when there is no information available to assign one of the subcategories

3 or more regional lymph node(s) positive and size of metastases not given

Stated as N2 [NOS]
c2A cN2a 3 or more lymph node metastases each less than 5 mm 3 or more regional lymph nodes positive and size of metastasis in each node less than 5 mm

Stated as N2a
c2B cN2b 2 or more lymph node metastases 5 mm or greater At least 2 lymph node metastases equal to or greater than 5 mm

Stated as N2b
c2C cN2c Lymph node metastases with extracapsular spread Regional lymph node(s) with extracapsular spread

Stated as N2c
c3 cN3 Fixed or ulcerated regional lymph node metastasis Fixed or ulcerated regional lymph nodes

Stated as N3
88 88 Not applicable Primary site/histology not TNM defined
Death certificate only (DCO) case
<BLANK> BLANK See Registrar Notes Only information available is FIGO Stage III [NOS], IIIA, IIIB, IIIC, IVA, or IVB

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