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TNM and Stage Groupings > Corpus Uteri Carcinoma
Corpus Uteri Carcinoma
Primary Tumor (T)
| T Category |
Stage Category Definitions |
| TX |
Primary tumor cannot be assessed |
| T0 |
No evidence of primary tumor |
| Tis |
Carcinoma in situ (preinvasive carcinoma) |
| T1 |
Tumor confined to corpus uteri |
| T1a |
Tumor limited to endometrium or invades less than one-half of the
myometrium |
| T1b |
Tumor invades one-half or more of the myometrium |
| T2 |
Tumor invades stromal connective tissue of the cervix but does not extend
beyond uterus** |
| T3a |
Tumor involves serosa and/or adnexa (direct extension or metastasis) |
| T3b |
Vaginal involvement (direct extension or metastasis) or parametrial
involvement |
| T4 |
Tumor invades bladder mucosa and/or bowel mucosa (bullous edema is not
sufficient to classify a tumor as T4) |
* FIGO staging no longer includes Stage 0 (Tis)
** Endocervical glandular involvement only should be considered as stage I
and not Stage II.
Regional Lymph Nodes (N)
| N Category |
Stage Category Definitions |
| NX |
Regional lymph nodes cannot be assessed |
| N0 |
No regional lymph node metastasis |
| N1 |
Regional lymph node metastasis to pelvic lymph nodes |
| N2 |
Regional lymph node metastasis to para-aortic lymph nodes, with or without
positive pelvic lymph nodes |
Distant Metastasis (M)
| M Category |
Stage Category Definitions |
| M1 |
Distant metastasis (includes metastasis to inguinal lymph nodes intraperitoneal
disease, or lung, liver, or bone. It excludes metastasis to para-aortic lymph
nodes, vagina, pelvic serosa, or adnexa) |
No distant metastasis (no pathologic M0; use clinical M to complete stage group)
Anatomic Stage/Prognostic Groups
| Stage |
T |
N |
M |
| 0* |
Tis |
N0 |
M0 |
| I |
T1 |
N0 |
M0 |
| IA |
T1a |
N0 |
M0 |
| IB |
T1b |
N0 |
M0 |
| II |
T2 |
N0 |
M0 |
| III |
T3 |
N0 |
M0 |
| IIIA |
T3a |
N0 |
M0 |
| IIIB |
T3b |
N0 |
M0 |
| IIIC1 |
T1-T3 |
N1 |
M0 |
| IIIC2 |
T1-T3 |
N2 |
M0 |
| IVA |
T4 |
Any N |
M0 |
| IVB |
Any T |
Any N |
M1 |
*FIGO no longer includes Stage 0 (Tis)
Carcinosarcomas should be staged as carcinoma.
