Table of Contents Table of Contents
Previous Page  20 / 94 Next Page
Show Menu
Previous Page 20 / 94 Next Page
Page Background


NCCN Guidelines for Patients


Hodgkin Lymphoma, Version 1.2015

While x-rays and contrast are used for CT, a sugar

radiotracer is used for PET. The radiotracer is often









). Before PET, you must

fast for 4 hours or more. There may be other limits to

your diet. About an hour before the scan, you will be

injected with the radiotracer.

The radiotracer emits a small amount of energy. The

energy is detected by the imaging machine. Cancer

appears brighter (“hotter”) in pictures because cancer

cells use sugar more quickly than normal cells. PET

hot spots can be caused by health problems other

than cancer. Thus, you may receive more tests if

results aren’t a match with Hodgkin lymphoma.

Chest x-ray

Cancer can spread to lymph nodes. If it does, lymph

nodes will grow larger over time. Doctors can see

lymph nodes on an x-ray and note if they look large.

Since Hodgkin lymphoma often spreads to lymph

nodes within the chest, a chest x-ray can be helpful. A

chest x-ray is advised if a large mass in the middle of

your chest is seen with other imaging tests.

Bone marrow biopsy

Cancer can spread into bone marrow. PET is one

of the tests used to assess for cancer in marrow.

PET results may clearly show that cancer is in bone

marrow. When PET shows cancer in three or more

areas of bone, it can be assumed that cancer is in the

marrow, too.

Low numbers of blood cells may be a sign of cancer

in bone marrow. You may have low numbers despite

normal PET results. In this case, a biopsy of your

bone marrow can be useful. This biopsy will remove

a small piece of bone and some bone marrow likely

from your hip bone. You may receive a light sedative

before the test.

During this test, you will likely lie on your side as

shown in

Figure 2.2.

Your doctor will clean your skin

then give local anesthesia to numb the site. Once

numb, a needle will be inserted through your skin and

pushed into the bone. The needle will be rotated to

remove the samples. This biopsy may cause pain and

can bruise your skin.


Treatment planning

Bone marrow biopsy

Figure 2.2 Bone marrow biopsy

Doctors use a bone marrow biopsy to remove a sample of bone and marrow for testing.

Illustration Copyright © 2015 Nucleus Medical Media, All rights reserved.