|Cervical Cancer Stages|
Stage 0 - Carcinoma in situ; CIN 3. The abnormal cells are in the surface layer of the cervix and have not invaded deeper tissues. This stage is not cancer. Also called pre-malignant or precancerous.
Stage 1 - Cancer in the cervix only
IA - Invasion of the cervical tissues can only be seen with a microscope. (Further classified into 1A1 and 1A2, depending upon depth)
IB - Lesions wider than 7 mm or deeper than 5 mm, or that can be seen without a microscope (Further classified for tumors larger or smaller than 4 cm)
Stage 2 - Cancer extends beyond the cervix, but not as far as the pelvic wall
2A - Extends to upper part of the vagina, but not to the surrounding tissues (parametria)
2B - Extends to the parametrial tissues (but not to the pelvic wall).
Stage 3 - The cancer has extended beyond Stage 2, but not beyond the pelvic area. Note: although this system does not include lymph node sampling, in other systems a positive lymph node would put the cancer in Stage 3.
3A - The cancer has spread to the lower third of the vagina, but nowhere else.
3B - The cancer has spread to the pelvic wall, or has blocked a ureter (ureters carry urine from the kidneys to the bladder).
Stage 4 - Cancer has spread to the bladder, rectum, or outside the pelvis.
4A - Spread to the rectum or bladder.
4B - Spread (metastasis)
to distant organs such as the lungs or liver.
Understanding Gyn Cancer Staging
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