1. Rules for ClassificationThe classification applies only to carcinomas. There should be histological confirmation of the disease.
The following are the procedures for assessing T, N, and M categories:
T categories. Physical examination, cystoscopy,* and imaging including urography
N categories. Physical examination and imaging including urography
M categories. Physical examination and imaging
The FIGO stages are based on clinical staging. This includes histological examination of a cone or amputation of the cervix. (TNM stages are based on clinical and/or pathological classification.)
The definitions of the T and M categories correspond to the FIGO stages. Both systems are included for comparison.
2. Anatomical Subsites1. Endocervix (C53.0)
2. Exocervix (C53.1)
3. Regional Lymph NodesThe regional lymph nodes are the paracervical, parametrial, hypogastric (internal iliac, obturator), common and external iliac, presacral, and lateral sacral nodes.
4. TNM Clinical Classification4.1.T - Primary Tumour
4.2. N - Regional Lymph Nodes
NX. Regional lymph nodes cannot be assessed
N0. No regional lymph node metastasis
N1. Regional lymph node metastasis
4.3. M - Distant Metastasis
MX. Distant metastasis cannot be assessed
M0. No distant metastasis
M1. Distant metastasis
5. pTNM Pathological ClassificationThe pT, pN, and pM categories correspond to the T, N, and M categories.
pN0. Histological examination of a pelvic lymphadenectomy specimen will ordinarily include 10 or more lymph nodes. If the lymph nodes are negative, but the number ordinarily examined is not met, classify as pN0.
6. G Histopathological GradingGX. Grade of differentiation cannot be assessed
G1. Well differentiated
G2. Moderately differentiated
G3. Poorly differentiated
7. Stage Grouping