Tuesday, March 31, 2015

Acute Lymphoblastic Leukemia (ALL)

Hello, my name is Megan and I am a nursing student at the University of Washington.  Throughout this blog I will be focusing on acute lymphoblastic leukemia.


Let’s begin with the basics….

What exactly is cancer? Cancer is defined as a group of diseases involving abnormal cell growth with the ability to invade and spread through out the body.

How is acute lymphoblastic leukemia different from other cancers? This type of cancer is specific to the bone marrow and the blood.  This cancer primarily targets young children, accounting for almost 6,000 new cases every year.

Exploring the bone marrow: In healthy children, the bone marrow makes immature blood cells that turn into mature blood cells over time. A blood stem cell can then become either a blood cell or a lymphoid cell.  In children with ALL, to many blood stem cells become lymphoid cells.  They don’t act like normal lymphoid cells and are not able to fight infection.  The increased number of these abnormal cells makes less room for functional, healthy cells.




 
Here is a picture to illustrate the anatomy of a bone and its three main features: spongy bone, compact bone, and bone marrow.  The bone is made up of spongy bone that is primarily found in the far ends of the bone, the red bone marrow is stored here.  The compact bone makes up the majority of bone in the shaft; the yellow bone marrow is stored here.

Red bone marrow: contains blood stem cells
Yellow bone marrow: contains mostly fat
 












This image shows the division from the blood stem cell.  It either divides into myeloid cell that further breaks down to red blood cells, platelets, and white blood cells or into lymphoid cell.  In children with ALL, the lymphoid cells continue to divide more rapidly making, this limits the number of myeloid cells.  In the body balance is everything!





Works Sited:

Childhood Acute Lymphoblastic Leukemia Treatment (PDQ®). (2015, March 15). Retrieved March 21, 2015, from http://www.cancer.gov/cancertopics/pdq/treatment/childALL/Patient/page1

Leukemia Symptoms, Causes, Treatment - What are the types of leukemia? - MedicineNet. (n.d.). Retrieved March 21, 2015, from http://www.medicinenet.com/leukemia/page3.htm

Pediatric Acute Lymphoblastic Leukemia . (n.d.). Retrieved March 21, 2015, from http://emedicine.medscape.com/article/990113-overview