After childhood Hodgkin lymphoma has been diagnosed,
tests are done to find out if cancer cells have spread within the lymph
system or to other parts of the body.
There are three ways that cancer spreads in the body.
Stages of childhood Hodgkin lymphoma may include A, B, E, and S.
The following stages are used for childhood Hodgkin lymphoma:
Stage I
Stage II
Stage III
Stage IV
Untreated Hodgkin lymphoma is divided into risk groups.
After childhood Hodgkin lymphoma has been diagnosed,
tests are done to find out if cancer cells have spread within the lymph
system or to other parts of the body.
The process used to find out if cancer
has spread within the lymph
system
or to other parts of the body is called staging. The information gathered from the staging
process determines the stage
of the
disease. Treatment is based on the stage and other factors that affect prognosis.
The following tests and procedures may be used in the staging process:
CT scan
(CAT scan): A procedure that makes a series of detailed pictures of areas inside the body, such as the neck, chest, abdomen, or pelvis, taken from different angles. The pictures are made by a computer linked to an x-ray
machine. A dye
may be injected
into a vein
or swallowed to help the organs
or tissues
show up more clearly. This procedure is also called computed tomography, computerized tomography, or computerized axial tomography.
PET scan
(positron emission tomography scan): A procedure to find malignanttumorcells
in the body. A small amount of radioactiveglucose
(sugar) is injected into a vein. The PET scanner
rotates around the body and makes a picture of where glucose is being used in the body. Malignant tumor cells show up brighter in the picture because they are more active and take up more glucose than normal cells do. Sometimes a PET scan and a CT scan are done at the same time. If there is any cancer, this increases the chance that it will be found.
MRI
(magnetic resonance imaging): A procedure that uses a magnet, radio waves, and a computer to make a series of detailed pictures of areas inside the body. This procedure is also called nuclear magnetic resonance imaging (NMRI). An MRI of the abdomen and pelvis may be done.
Magnetic resonance imaging (MRI) of the abdomen. The child lies on a table that slides into the MRI scanner, which takes pictures of the inside of the body. The pad on the child’s abdomen helps make the pictures clearer.
Bone marrow aspiration and biopsy. After a small area of skin is numbed, a bone marrow needle is inserted into the child’s hip bone. Samples of blood, bone, and bone marrow are removed for examination under a microscope.
There are three ways that cancer spreads in the body.
Tissue. The cancer spreads from where it began by growing into nearby areas.
Lymph system. The cancer spreads from where it began by getting into the lymph system. The cancer travels through the lymph vessels
to other parts of the body.
Blood. The cancer spreads from where it began by getting into the blood. The cancer travels through the blood vessels
to other parts of the body.
Stages of childhood Hodgkin lymphoma may include A, B, E, and S.
A: The patient does not have B symptoms (fever, weight loss, or night sweats).
B: The patient has B symptoms.
E: Cancer is found in an organ or tissue that is not part of the lymph
system but which may be next to an area of the lymph system affected by the cancer.
The following stages are used for childhood Hodgkin lymphoma:
Stage I
Stage I childhood Hodgkin lymphoma. Cancer is found in one or more lymph nodes in one lymph node group. In stage IE (not shown), cancer is found outside the lymph nodes in one organ or area.
Stage II
: Cancer
is found in two or more lymph node
groups either above or below the diaphragm
(the thin muscle below the lungs
that helps breathing and separates the chest from the abdomen).
Stage II childhood Hodgkin lymphoma. Cancer is found in two or more lymph node groups, and both are either above (a) or below (b) the diaphragm.
Stage IIE
: Cancer is found in one or more lymph node
groups either above or below the diaphragm
and outside the lymph nodes in a nearby organ
or area.
Stage IIE childhood Hodgkin lymphoma. Cancer is found in one or more lymph node groups above or below the diaphragm and outside the lymph nodes in a nearby organ or area (a).
Stage III
Stage III childhood Hodgkin lymphoma. Cancer is found in one or more lymph node groups above and below the diaphragm (a). In stage IIIE, cancer is found in lymph node groups above and below the diaphragm and outside the lymph nodes in a nearby organ or area (b). In stage IIIS, cancer is found in lymph node groups above and below the diaphragm (a) and in the spleen (c). In stage IIIS plus E, cancer is found in lymph node groups above and below the diaphragm, outside the lymph nodes in a nearby organ or area (b), and in the spleen (c).
Stage III
is divided
into stage III, stage IIIE, stage IIIS, and stage
IIIE,S.
Stage IV childhood Hodgkin lymphoma. Cancer is found outside the lymph nodes throughout one or more organs (a); or outside the lymph nodes in one organ and has spread to lymph nodes far away from that organ (b); or in the lung, liver, or bone marrow.
is found outside the lymph nodes
throughout one or more organs, and may be in lymph nodes near those organs; or
is found outside the lymph nodes in one organ and has spread to areas far away from that organ; or
is found in the lung, liver, bone marrow, or cerebrospinal fluid
(CSF). The cancer has not spread to the lung, liver, bone marrow, or CSF from nearby areas.
Untreated Hodgkin lymphoma is divided into risk groups.
Untreated childhood Hodgkin lymphoma is divided into risk groups
based on the stage, size of the tumor, and whether the patient has B symptoms (fever, weight loss, or night sweats). The risk group is used to plan treatment.