NCCN Guidelines for Patients™: Colon Cancer
A double layer
of peritoneum attached to
changes in genes
Not connected to the
The lining of
The inner layer of the
Part 3: Tests of colon cancer
The N category reflects how far colon cancer has spread to nearby lymph
nodes. Nearby lymph nodes include the pericolic and perirectal nodes and those found
along the arteries in the area.
means that there is no cancer in nearby lymph nodes.
is cancer that has grown into 1 to 3 lymph nodes.
cancer has spread into 1 nearby lymph node.
cancer has spread into 2 – 3 nearby lymph nodes.
means there are tumor deposits in the subserosa, mesentery,
or nearby nonperitonealized tissue but no cancer in lymph nodes.
is cancer that has grown into 4 or more lymph nodes.
cancer has spread into 4 – 6 lymph nodes.
cancer has spread into 7 or more lymph nodes.
The M category tells you if there are metastases to distant
sites. Colon cancer tends to metastasize to the lungs and liver.
means that there is no growth to distant sites.
means there are distant metastases.
cancer has spread to 1 distant site.
cancer has spread to 2 or more distant sites or to the surface
of the peritoneum.