Childhood Leukemia Symptons...
Two general categories of leukemia are acute and chronic. In acute childhood
leukemia, symptoms appear quickly and worsen quickly. This form of leukemia
may develop over a short period of days to weeks. Abnormal white blood
cells may collect in the brain or spinal cord.
The result may be headaches,
vomiting, confusion, loss of muscle control and difficulty seeing. Some patients
develop sores in the eyes or unusual skin rashes. Leukemia also can affect
the lungs and other parts of the body.
In chronic childhood leukemia, symptoms may not appear for months or years.
Doctors may find chronic leukemia during a routine exam before any symptoms
arise. This form of leukemia may develop over longer periods covering months
or years before symptoms are apparent. When symptoms do appear, they tend
to be mild and worsen gradually. Abnormal white blood cells may gradually
collect in various parts of the body, affecting areas such as the skin, central
nervous system, digestive tract, kidneys and testicles.
The two primary types of childhood leukemia are acute lymphocytic leukemia
(ALL) and acute myelogenous leukemia (AML). These two acute forms of leukemia
can develop over a short period of days to weeks. A third chronic form, chronic
myelogenous leukemia (CML), is rare among children.
- Acute Lymphocytic Leukemia (ALL): Acute lymphocytic
leukemia -- also called lymphoblastic or lymphoid leukemia -- accounts
for about 75 percent to 80 percent of childhood leukemia. In this form
of the disease, the lymphocyte cells, which normally fight infection, are
affected. When acute lymphocytic leukemia occurs, the bone marrow makes
too many lymphocyte cells that do not mature correctly. The lymphocyte
cells overproduce, crowding out other blood cells. Immature blood cells
or blasts don't work properly to fight infection. Chromosome abnormalities,
or extra chromosomes and structural changes in the chromosome material,
are present in the majority of ALL patients.
- Acute Myelogenous Leukemia (AML): Acute myelogenous
leukemia -- also called granulocytic, myelocytic, myeloblastic or myeloid
leukemia -- accounts for about 20 percent of childhood leukemias. Acute
myelogenous leukemia is a cancer of the blood in which too many granulocytes,
a type of white blood cell that normally fights infection, are produced
in the marrow and they don't mature correctly. The immature blood cells
or blasts don't work properly to fight infection. The excessive number
of these abnormal cells crowd out other healthy blood cells. Children with
certain genetic syndromes, including Fanconi anemia, Bloom syndrome, Kostmann
syndrome and Down syndrome, have a higher risk of developing AML.
- Chronic Myelogenous Leukemia (CML): Chronic myelogenous
leukemia is the more slowly developing form of myelogenous leukemia and
is rare among children. It may develop over a period of months or years.
Children with CML have a chromosome rearrangement. Part of chromosome No.
9 breaks off and attaches itself to chromosome No. 22, creating an exchange
of genetic material. This rearrangement changes the position and function
of certain genes, causing uncontrolled cell growth. Other chromosome abnormalities
also can occur.
Like all blood cells, leukemia cells travel throughout the body. Depending
on the number of abnormal cells and where these cells collect, patients with
leukemia may have a number of symptoms.
Here are some general leukemia symptoms:
- Anemia: Children with leukemia often have fewer than
normal healthy red blood cells and platelets. They lack enough red blood
cells to carry oxygen through the body, which causes a condition called
anemia. Children with anemia may look pale, feel weak and tired and bleed
and bruise easily.
- Recurrent Infections: Although children with leukemia
may have a high number of white blood cells, these white blood cells are
immature and don't fight infection. Children may experience repetitive
viral or bacterial infections. They often have symptoms of infection such
as fever, runny nose and cough.
- Bone and Joint Pain: Pain in bones and joints is another
common symptom of leukemia. This pain is usually a result of the bone marrow
being overcrowded and "full."
- Abdominal Distress: Abdominal pain also may be a symptom.
Leukemia cells can collect in the kidney, liver and spleen, causing enlargement
of these organs. Pain in the abdomen may cause a loss of appetite and weight.
- Swollen Lymph Nodes: Lymph nodes under the arms, in
the groin, chest and neck may become swollen when leukemia cells collect
in the nodes. Lymph nodes filter the blood.
- Difficulty Breathing or Dyspnea: With T-cell acute lymphocytic
leukemia, leukemia cells tend to clump together around the thymus gland.
This mass of cells present in the middle of the chest can cause pain and
difficulty breathing. Wheezing, coughing or painful breathing requires
immediate medical attention.
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