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TNM and Stage Groupings > Fallopian Tube
Fallopian Tube
Primary Tumor (T)
| T Category |
Stage Category Definitions |
| TX |
Primary tumor cannot be assessed |
| T0 |
No evidence of primary tumor |
| Tis |
Carcinoma in situ (limited to tubal mucosa) |
| T1 |
Tumor limited to the fallopian tube(s) |
| T1a |
Tumor limited to one tube, without penetrating the serosal surface; no ascites |
| T1b |
Tumor limited to both tubes, without penetrating the serosal surface; no ascites |
| T1c |
Tumor limited to one or both tubes with extension onto or through the tubal
serosa, or with malignant cells in ascites or peritoneal washings |
| T2 |
Tumor involves one or both fallopian tubes with pelvic extension
|
| T2a |
Extension and/or metastasis to the uterus and/or ovaries |
| T2b |
Extension to other pelvic structures |
| T2c |
Pelvic extension with malignant cells in ascites or peritoneal washings |
| T3 |
Tumor involves one or both fallopian tubes, with peritoneal implants outside the
pelvis |
| T3a |
Microscopic peritoneal metastasis outside the pelvis |
| T3b |
Macroscopic peritoneal metastasis outside the pelvis 2 cm or less in greatest
dimension |
| T3c |
Peritoneal metastasis outside the pelvis and more than 2 cm in diameter |
* FIGO no longer includes Stage 0 (Tis)
Note: Liver capsule metastasis is T3/Stage III; liver parenchymal metastasis
M1/Stage IV. Pleural effusion must have positive cytology for M1/Stage IV.
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 |
Distant Metastasis (M)
| M Category |
Stage Category Definitions |
| M1 |
Distant metastasis (excludes metastasis within the peritoneal cavity) |
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 |
| IC |
T1c |
N0 |
M0 |
| II |
T2 |
N0 |
M0 |
| IIA |
T2a |
N0 |
M0 |
| IIB |
T2b |
N0 |
M0 |
| IIC |
T2c |
N0 |
M0 |
| III |
T3 |
N0 |
M0 |
| IIIA |
T3a |
N0 |
M0 |
| IIIB |
T3b |
N0 |
M0 |
| IIIC |
T3c |
N0 |
M0 |
| IIIC |
Any T |
N1 |
M0 |
| IV |
Any T |
Any N |
M1 |
*FIGO no longer includes Stage 0 (Tis)
