NCCN Guidelines for Patients® | Malignant Pleural Mesothelioma - page 20

20
NCCN Guidelines for Patients
®
: Malignant Pleural Mesothelioma
Version 1.2012
Part 5: Treating mesothelioma
Definitions:
Artery:
A tube that carries
blood from the heart to
organs throughout the body
Observation:
A period of
testing to watch for when
to start treatment based on
cancer growth
Oxygen:
A gas in the air
that the body needs to live
Pathologist:
A doctor
who’s an expert in testing
cells to find disease
Radiotracer:
Matter with
energy that is put into the
body to make pictures
clearer
Side effect:
An unplanned
physical or emotional
response to treatment
Surgery:
An operation to
remove or repair a part of
the body
Tumor:
An overgrowth
of cells
Mesothelioma cell types
Epithelioid
The cells are uniform and form complex, organized patterns.
Sarcomatoid
The cells are spindle-shaped and form disorganized patterns.
Biphasic
(mixed)
The cells are both epithelioid and sarcomatoid cells.
The second feature used to recommend treatment is the type of mesothelioma cell.
A pathologist will classify the cell type based on the size, shape, and structure of
the cells. This is known as histologic subtyping. The three types of mesothelioma
cells are:
Stages I – III with either an epithelioid or mixed cell type are treated the same. The
recommended treatments for these mesotheliomas can be found starting on page 21.
Stage IV mesothelioma and any mesothelioma with a sarcomatoid cell type are
treated the same. See page 27 for treatment recommendations.
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