NCCN Guidelines for Patients
Mycosis Fungoides, Version 1.2016
In Part 1, blood tests that may be useful for diagnosis
are explained. In brief, your blood may be tested
for Sézary cells if the skin biopsy is not clear. Also,
flow cytometry may be used to assess for surface
proteins common to Sézary cells. PCR to test for TCR
rearrangements in blood cells may also be done. If
these blood tests weren’t done for diagnosis, they are
advised for treatment planning. Other common blood
tests for mycosis fungoides are:
Complete blood count
A CBC (
ount) measures the number
of blood cells in a blood sample. It includes numbers
of white blood cells, red blood cells, and platelets.
Your blood counts may be low or high because of
cancer or another health problem. It is an essential
test that gives a picture of your overall health.
Comprehensive metabolic panel
Chemicals in your blood come from your liver, bone,
and other organs. A comprehensive metabolic panel
often includes tests for up to 14 chemicals. The tests
show if the level of chemicals is too low or high.
Abnormal levels can be caused by cancer or other
Lactate dehydrogenase is a protein that is in most
cells. It gets into your blood when a cell is damaged.
Thus, a high level of lactate dehydrogenase is a sign
of cell damage. High levels can be caused by cancer
or other health problems. If related to cancer, high
levels may be a sign that the cancer is widespread.