NCCN Guidelines for Patients® | Ovarian Cancer - page 25

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Part 3: Treatment planning
NCCN Guidelines for Patients
®
: Ovarian cancer
Version 1.2013
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Stages of Ovarian Cancer
Stage I
The tumor (cancer) is in one or both ovaries and the cancer hasn’t spread to other organs or tissues.
.
Stage IA –
Cancer is only within one ovary and there is no cancer on the surface of the ovary.
Stage IB –
Cancer is in both ovaries, but there is no cancer on the surface of the ovaries.
Stage IC –
Cancer is in one or both ovaries, plus any of the following: the outer covering of the ovary has burst or
broken; cancer has spread to the surface of one or both ovaries; or cancer cells are in abdominal fluid (ascites or
peritoneal washings).
Stage II
Cancer is in one or both ovaries and has spread to nearby organs in the pelvis.
Stage IIA –
Cancer has grown into and/or spread implants on the uterus, Fallopian tubes, or both.
Stage IIB –
Cancer has grown into and/or spread implants on other tissues in the pelvis, including or not including the
uterus, Fallopian tubes, or both.
Stage IIC –
Cancer has grown into and/or spread implants on the uterus, Fallopian tubes, or both, and/or other
tissues in the pelvis. Cancer cells are also in abdominal fluid (ascites or peritoneal washings).
Stage III
Cancer is in one or both ovaries and has spread outside of the pelvis to the peritoneum (tissue that lines the inside of the
abdomen and covers most organs in the abdomen) and/or to nearby lymph nodes.
.
Stage IIIA
– Cancer that has spread to the lining of the abdomen (peritoneum) outside of the pelvis is so small that it
can only be seen with a microscope.
Stage IIIB –
Cancer that has spread to the lining of the abdomen (peritoneum) outside of the pelvis is 2 cm
(
c
enti
m
eters) or smaller, but can be seen without a microscope.
Stage IIIC –
Cancer that has spread to the lining of the abdomen (peritoneum) outside of the pelvis is larger than 2 cm
and/or cancer has spread to lymph nodes in or near the pelvis.
Stage IV
Cancer has spread to other parts of the body beyond the area of the pelvis and abdomen.
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