NCCN Guidelines for Patients
Part 9: Dictionary
There are cancer cells in the normal-
looking tissue around the tumor
removed during surgery.
Positron emission tomography
A test that uses radioactive material to
see the shape and function of organs
and tissues inside the body.
The main treatment used to rid the
body of cancer.
The first mass of cancer cells in the
The course and outcome of a disease.
A chain of chemical compounds
important to every cell in the body.
Removal of tissue using a sharp,
hollow, round-shaped knife in order to
test it for disease.
Presence or absence of dense
A doctor who’s an expert in treating
cancer with radiation.
Use of high-energy rays to destroy
Containing a powerful energy called
Matter with energy that is put into the
body to make pictures clearer.
The return of cancer after treatment.
Melanoma that has come back after
A treatment plan that specifies the
dosage, schedule, and duration of
Regional lymph node recurrence
Cancer that has come back after
treatment in lymph nodes (groups of
special disease-fighting cells) near the
Regional lymph nodes
Groups of special disease-fighting
cells located near the tumor.
Cancer cells have spread from the
first tumor to nearby lymph vessels,
lymph nodes (groups of special
disease-fighting cells), and/or nearby
Treatment with cancer-killing drugs
directed to a specific area of the body
such as an arm or leg.
Risk evaluation and mitigation
strategy (REMS) program
A program to monitor and manage
serious side effects (unplanned
physical or emotional effects) of