Leukemia can produce a variety of symptoms, although most are not often apparent in the earliest stages of the malignancy. The most common symptoms of leukemia—fatigue, pale skin, weight loss and night sweats—are often attributed to other less serious conditions, such as the flu.
Some signs of leukemia, like night sweats, fever, fatigue and achiness, resemble flu-like symptoms. Unlike symptoms of the flu, which generally subside as patients get better, leukemia symptoms generally last longer than two weeks, and may include sudden weight loss, bone and joint pain and easy bleeding or bruising.
Chronic leukemia involves more-mature blood cells. These blood cells replicate or accumulate more slowly and can function normally for a period of time. Some forms of chronic leukemia initially produce no early symptoms and can go unnoticed or undiagnosed for years.
Blood tests can reveal very low levels of normal white and red blood cells and platelets with or without the presence of an excessive amount of abnormal white blood cells—a sign of leukemia.
Chronic Leukemia May Go Undetected
It may take months or even several years before the disease begins to cause symptoms that alert the patient that something is wrong.
If caught early, leukemia can be cured by undergoing several cancer treatments.
The most common leukemia biomarkers are CD (cluster of differentiation) markers, an extremely diverse series of membrane proteins predominantly expressed on the leukocyte surface. CD markers are mostly useful for classifying white blood cells (WBC) and especially important for diagnosis of lymphomas and leukemias.
What is Leukemia (Blood Cancer)? Leukemia starts in the soft, inner part of the bones (bone marrow), but often moves quickly into the blood. It can then spread to other parts of the body, such as the lymph nodes, spleen, liver, central nervous system and other organs.
Leukemia is commonly misdiagnosed as the following conditions: Influenza. Fever. Pathological fracture.
Chronic leukemia often causes only a few symptoms or none at all. Signs and symptoms usually develop gradually. People with a chronic leukemia often complain that they just do not feel well. The disease is often found during a routine blood test.
Stage I: The patient has lymphocytosis and enlarged lymph nodes. The patient does not have an enlarged liver or spleen, anemia, or low levels of platelets. Stage II: The patient has lymphocytosis and an enlarged spleen and/or liver and may or may not have swollen lymph nodes.
When is a patient tested for leukemia? "A patient may be tested for leukemia if he or she has unexplained weight loss, night sweats or fatigue, or if he or she bruises or bleeds easily," Dr. Siddon says. "Sometimes routine blood work shows an unexplained elevated number of white blood cells."
Age: The risk of most leukemias increases with age. The median age of a patient diagnosed with acute myeloid leukemia (AML), chronic lymphocytic leukemia (CLL) or chronic myeloid leukemia (CML) is 65 years and older. However, most cases of acute lymphocytic leukemia (ALL) occur in people under 20 years old.
Flow cytometry
This test is a very accurate indicator in determining the patient's exact kind of lymphoma or leukemia. The test may be performed on bone marrow cells (taken during a biopsy) or blood cells (taken during a blood test).
In 2008, one of the first genes linked to leukemia -- RUNX1 -- was identified and became available for genetic testing in 2008. People who inherit changes in the RUNX1 gene can face a higher risk of acute myeloid leukemia (AML).
While leukemia bruises can form anywhere on the body, they are most commonly found on the arms and legs.
The cause of acute leukaemia is unknown, but factors that put some people at higher risk are: exposure to intense radiation. exposure to certain chemicals, such as benzene. viruses like the Human T-Cell leukaemia virus.
People in stages 0 to II may live for 5 to 20 years without treatment. CLL has a very high incidence rate in people older than 60 years. CLL affects men more than women. If the disease has affected the B cells, the person's life expectancy can range from 10 to 20 years.
In the United States, overall, 5-year survival among people diagnosed with leukemia is 65%. However, these statistics vary greatly according to the specific subtype of disease: Chronic lymphocytic leukemia (CLL) 5-year survival rate is 88%. Acute lymphocytic leukemia (ALL) 5-year survival rate is 71.3%.
Stage 1 – A patient has high levels of white blood cells and enlarged lymph nodes. Stage 2 – A patient has high levels of white blood cells and is anemic. He or she may also have enlarged lymph nodes. Stage 3 – A patient has high levels of white blood cells and is anemic.