Staging is a way of describing or classifying a cancer based on the extent of cancer in the body. The most common staging system for vaginal cancer is the International Federation of Gynecology and Obstetrics (FIGO) system. The TNM categories, which correspond to FIGO, may also be used.
The classification applies only to primary vaginal carcinoma. Melanoma and sarcoma of the vagina are not staged using these staging systems. Melanoma of the vagina is staged as a melanoma of the skin. Sarcoma of the vagina is staged as soft tissue sarcoma.
The FIGO stages are based on surgical staging.
The TNM stages are based on clinical or pathological classification or both.
TNM stands for tumour, nodes, and metastasis. TNM staging describes:
The pT and pN categories match the T and N categories.
Primary tumour cannot be assessed.
No evidence of primary tumour.
Carcinoma in situ – The cancer is in the epitheliumepitheliumA thin layer of epithelial cells that makes up the outer surfaces of the body (the skin) and lines hollow organs, glands and all passages of the respiratory, digestive, reproductive and urinary systems. and is not invading underlying tissue.
Tumour is limited to the vagina.
Tumour invades tissue close to the vagina but not the pelvic wall.
Tumour extends to the pelvic wall.
Tumour invades the mucosa of the bladder or rectum or extends beyond the pelvis.
Regional lymph nodes cannot be assessed
No regional lymph node metastasis
Regional lymph node metastasis
No distant metastasis
FIGO further groups the TNM data into the stages listed in the table below.
Stage 0 (Tis N0 M0) is not included in the FIGO system.
The cancer has grown through the epithelium but not through the vagina. There is no spread to lymph nodes or distant sites.
The cancer has spread to tissues next to the vagina but not to the wall of the pelvis. There is no spread to lymph nodes or distant sites.
The cancer has spread to the wall of the pelvis. There may be spread to lymph nodes but not to distant sites.
The cancer is in the vagina or may have spread into the tissues next to the vagina or to the wall of the pelvis. There is spread to nearby lymph nodes but not to distant sites.
The cancer has spread from the vagina to nearby organs such as the bladder or rectum. There may be spread to the lymph nodes but not to distant sites.
The cancer has spread to distant organs such as the lungs.
Recurrent vaginal cancer means that the cancer has come back after it has been treated. It may recur in the same location as the original cancer or it may recur in another part of the body (metastatic vaginal cancer).
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