WBCs Flashcards
lukemia
excess proliferation of malignant (cancerous) hematopoetic blast cells
blast cells:
- can be myeloid or lymphoid
- precursor cells that are immature
- start to accumulate in the bone marrow-> lead to decrease in full mature blood cells
- could be any blood cells
-cytopoenias - decreased cells
cytopoenias
decreased blood cells
cytopoenia blood cell examples
RBCs- amaemia
Platelets - easy bruising/longer bleeding
WBC- decreased immunity
what happens to the blast cells in cancer
immature/blast cells aka malignent cells spill out into blood, set up home in other structures in the body
common places include: liver, speen, lymph nodes, thymus
lymphoid lineage-acute leukemia
acute lymphoblastic leukemia
- rapid proliferation of malignant cancerous lymphoblasts
lymphoid lineage-chronic leukemia
chronic lymphocytic leukemia
- slower onset proliferation of further differientated lymphoid blast cells
- mostly precursor cells to B lymphocytes
Myeloid lineage-acute leukemia
acute myeloid leukemia
-rapid proliferation of cancerous myeloid blast cells
myeloid lineage-chronic leukemia
chronic myeloid leukemia
- slower onset proliferation of further differentiated myeloid blast cells
- mostly pregranulocytes that are affected
leukemia signs and symptoms:
anaemia, easy bruising, bleeding, decreased immunity, hepatosplenomegaly (spleen and liver enlarged), Lymphadenopathy (enlarged lymph nodes)
leukemia treatments
cancer treatments eg chemotherapy and radiation
but specific to thos: stem cell transplant and bone marrow transplant
lymphoma
- uncontrolled proliferation of lymphocytes within the lymphatic system
- leads to tumours in lymph nodes -> disruption of lymph node fucntion
lymphoma affect on lymph node function
decreased immune activation
decreases lymph filtration
non-hodgkin lymphoma
- readily spreads tp other body sites: sportatic
- fast growing types
- slow growinf types
- B or T cells, more commonly B cells
hodgkin lymphoma
- spread trends to be more patterned
- may subtypes
- prescense of reed-sternberg cells (multinucleated enlarged, pre-apoptoic (prior to programmed cell death) B cells)