Leukemia - The lethal blood cancer
What is Leukemia?
An abnormal growth in the number of
cells, specifically, white blood cells (WBCs) are called as Leukemia. The WBCs
force out other red blood cells and platelets. The increased white blood cells
do not function well and are immature. Leukemia in children is more common
than in adults. Every day, there are hundreds of billion cells that are
produced in the body, most of which are red blood cells. In people affected
with Leukemia, the production of white blood cells is more than required. Many
of them do not mature and are unable to fight infection.
Causes
Leukemia causes are unknown. However,
there are a few abnormal conditions that have been related to it. Mostly,
people with acute lymphocytic leukemia or chronic myeloid leukemia tend to have
Philadelphia chromosome in their bone marrow and white blood cells. In other
types of leukemia, the abnormality is an acquired one, neither is it inherited
nor passed on to the offspring. The other genetic disorders related to this are
Bloom Syndrome, Down Syndrome, Immune Deficiency Disorders and others. There
are environmental factors which may also lead to this such as persistent
exposure to radiation, exposure to several chemicals and non-ionizing
radiation. Family history may also be one of the causes.
Types
There
are mainly four types of leukemia:
Acute
myeloid leukemia (AML): This occurs when cells have not matured and the bone marrow
starts to make blasts which usually grow into white blood cells. The bone
marrow may also create abnormal platelets and red blood cells. AML has eight
different subtypes which are based on the particular cell that leukemia began
from.
Chronic
myeloid leukemia (CML): The birth of these cells begins from the bone marrow and
spreads to the blood, thereafter. The disease spreads to other parts of the
body eventually over a period of time. CML is specifically associated with the
Philadelphia chromosome. It can also spread to any organ in the body.
Acute
lymphocytic leukemia (ALL): This type of blood cancer progresses fast and replaces the
cells that produce functional lymphocytes. This is associated with B lymphatic
cells in comparison to T cells. The dividing, growing, and spreading of
leukemia cells may result in further symptoms.
Chronic
lymphocytic leukemia (CLL): A slow-growing type of cancer which occurs in the bone marrow
than to the blood and can further spread to the spleen and the liver. However,
this may take many years to develop before it becomes serious.
Leukemia early symptoms include poor
appetite, bruising, bleeding, stomach ache, trouble in breathing, frequent infections, swelling,
bone and joint pain, anaemia, and others. The symptoms also vary depending upon
the age as well as how much of the cancer has grown. In adults, it may also be
night sweats, frequent fevers, bone pain, weight loss, swollen gland in the
neck, groin or underarm and feeling tired unknowingly.
Leukemia treatment aims at destroying the infected cells and
enable the normal cells to create in the bone marrow. All the decisions related
to its treatment are based on the stage, the kind of leukemia, the age and the
health of the patient. Max Healthcare, Apollo, Sri Shankara Cancer Hospital and
many other hospitals in India provide treatment for Leukemia.