NCCN Guidelines for Patients
Part 2: Overview of cancer tests
The depth of tumor growth measured in millimeters.
Whether or not the tumor’s top skin layer is present and intact (not ulcerated) or is broken
or missing (ulcerated).
Dermal mitotic rate.
A measure of how many tumor cells are actually growing and dividing.
A scale of tumor depth with 5 scores based on which layer of skin the tumor has grown into (invaded).
Peripheral margin status.
Presence or absence of cancer cells in the normal-looking tissue around the
sides of a tumor.
Deep margin status.
Presence or absence of cancer cells in the normal-looking tissue under a tumor.
Tiny tumors near the main tumor seen with a microscope.
The area of the body that contains the tumor.
A decrease in the size of the tumor.
Presence or absence of white blood cells.
Vertical growth phase.
Direction of tumor growth is down into the skin.
Melanoma has grown into (invaded) lymph or blood vessels.
Melanoma cells are able to grow into (invade) nerves.
Grouping of cancer types based on cancer cell qualities.
Presence or absence of dense connective tissue.