Invasive breast carcinoma - IARC

TNM and FIGO classification of tumours of the ovary
TNM and FIGO classification 1,2,3
T – Primary Tumour
TNM
Categories
FIGO
S t a g e s
TX
Primary tumour cannot be assessed
T0
No evidence of primary tumour
T1 I Tumour limited to the ovaries
T1a IA Tumour limited to one ovary; capsule intact, no
tumour on ovarian surface; no malignant cells in
ascites or peritoneal washings
T1b IB Tumour limited to both ovaries; capsule intact, no
tumour on ovarian surface; no malignant cells in
ascites or peritoneal washings
T1c IC Tumour limited to one or both ovaries with any of the
following: capsule ruptured, tumour on ovarian surface,
malignant cells in ascites or peritoneal washings
T2 II Tumour involves one or both ovaries with pelvic
extension
T2a IIA Extension and/or implants on uterus and/or tube(s);
no malignant cells in ascites or peritoneal washings
T2b IIB Extension to other pelvic tissues; no malignant cells
in ascites or peritoneal washings
T2c IIC Pelvic extension (2a or 2b) with malignant cells in
ascites or peritoneal washings
T3 and/or N1 III Tumour involves one or both ovaries with microscopically
confirmed peritoneal metastasis outside the
pelvis and/or regional lymph node metastasis
T3a IIIA Microscopic peritoneal metastasis beyond pelvis
T3b IIIB Macroscopic peritoneal metastasis beyond pelvis
2 cm or less in greatest dimension
T3c and/or N1 IIIC Peritoneal metastasis beyond pelvis more than 2 cm
in greatest dimension and/or regional lymph node
metastasis
M1 IV Distant metastasis (excludes peritoneal metastasis)
Note: Liver capsule metastasis is T3/stage III, liver parenchymal metastasis M1/stage
IV. Pleural effusion must have positive cytology for M1/stage IV.
N – Regional Lymph Nodes 4
NX
Regional lymph nodes cannot be assessed
N0
No regional lymph node metastasis
N1
Regional lymph node metastasis
M – Distant Metastasis
MX
Distant metastasis cannot be assessed
M0
No distant metastasis
M1
Distant metastasis
Stage Grouping
Stage IA T1a N0 M0
Stage IB T1b N0 M0
Stage IC T1c N0 M0
Stage IIA T2a N0 M0
Stage IIB T2b N0 M0
Stage IIC T2c N0 M0
Stage IIIA T3a N0 M0
Stage IIIB T3b N0 M0
Stage IIIC T3c N0 M0
Any T N1 M0
Stage IV Any T Any N M1
__________
1
{51,2976}.
2
A help desk for specific questions about the TNM classification is available at http://tnm.uicc.org.
3
The classification applies to malignant surface epithelial-stromal tumours including those of borderline malignancy.
Non-epithelial ovarian cancers may also be classified using this scheme.
4
The regional lymph nodes are the hypogastric (obturator), common iliac, external iliac, lateral sacral, para-aortic, and inguinal nodes.
116 Tumours of the ovary and peritoneum