NCCN Guidelines for Patients® | Ovarian Cancer - page 24

Part 3: Treatment planning
NCCN Guidelines for Patients
: Ovarian cancer
Version 1.2013
If you don’t have ascites, then your doctor may “wash”
the inside of your abdomen (called the peritoneal cavity)
with a special liquid and then test it for cancer cells. The
liquid samples collected and tested for cancer cells after
the “wash” are called peritoneal washings.
Staging systems
There are two staging systems used for ovarian cancer:
the TNM staging system and the FIGO (
ederation of
ynecology and
bstetrics) staging
system. In the TNM system, each of the letters—T, N,
and M—describes a different area of cancer growth.
T = tumor size and invasion, N = cancer in lymph nodes,
and M = spread to distant sites.
The FIGO staging system is the most commonly used
system to stage ovarian cancer. In this system, the
cancer is assigned a Roman numeral (I, II, III, or IV)
and a letter (A, B, or C) based on how large or where
the primary tumor has grown and how far the cancer
has spread in your body.
Figure 6. Possible biopsy sites in the abdomen
and pelvis
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