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Pathology
Leukemia
65
Science
Professional
10/17/2007

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Cards

Term
Where does leukemia develops?
Definition
single malignant cell
Term

What are two classes of leukemia?

Definition
acute and chronic
Term

Where does most leukemias come from one of two common cell ?

Definition
Myeloid

Lymphocytes
Term
Myeloid cells of the bone produces?
Definition
PMNs
Term
what is WBC
Definition
infection fighting cells of blood
Term
what are the types of WBC?
Definition
granulocytes

lymphocytes

monocytes
Term
Where are granulocytes produced?

What types are these?

How much is it in the blood?
Definition
Bone Marrow

neutrophils, eosinophils, basophils

2/3 of wbc in blood
Term
What is stroma of bone marrow composed of ?
Definition
fibroblast-like reticular cells, collagenous fibers, and ECM

mixtures of cells
Term

Granulocytes are increased  during?

what's the maturation process?

Definition
1. increased in bacterial infection
2. increased in myeloid leukemia

Blast cell-> prommyeloctye-> myelocyte-> metamyelocyte-> Band-> segmented Neutrophil
Term
What are the types of lymphocyes?

WBCs is approximately what percentage of plama blood?

When is lymphocytes increased?
Definition
B cells - antibody production

T cells- fight viral infection

30%

in viral infections and lymphoid leukemia
Term
What does monocytes become and involved?

What percentages of WBC in PB?
Definition
- tissue macrophages

in phagocytosis

15%
Term

What does lymphoid stem cells make?

Definition
pre B lymphocytes

pro T lymphocytes
Term
What does myeloid stem cells produced?
Definition
erythroblasts
megakaryoblast
myeloblasts
monoblast
Term
What can change the WBC count and % dramatically ?
Definition

1. rxn to infection or tissue necrosis
         - bacterial, viral, fungal, mycobacterial infections

         - MI and other conditions leading to cell death and necrosis

2. malignant or benign proliferative bone marrow disorders


3. Bone marrow failure--leukemia, nutrient deficit, space occupying lesions



4. sequestration or peripheral destruction-- splenic hypertrophy(Felty's syndrome)

Term
Which of the following cell type is NOT dervived from myeloid stem cells?

A. erythroblast
B. monoblasts
C. megakaryoblasts
D. Lymphocyte
Definition
Term
WHat is leukemia?

What is caner?

Where does cancer begin?

Where does leukemia begin?
Definition
a type of cancer

a group of MANY related DZ

in CELLS, the  orderly process goes wrong like new cells form when the body does not need them or old cells do not die when they should

- begins in blood cells
Term

What is Blast  and stem cells?

Where do blood cells mature?

What is peripheral blood?

Definition
- immature blood cells

BONE MARROW then move to blood vessels

blood that flows thru the blood vessels and heart
Term
People with leukemia, the Bone marrow produces?
Definition
abnormal WBC

At first, leukemia cells fxn almost normally and later in time they may crowd out normal WBCs, RBC and platelets
Term
What is chronic leukemia? acute leukemia?
Definition
leukemia had a short course( weeks to just a few months), died quickly

longer course, dying in months or possibly a few years
Term

During chronic leukemia, will people with this have symptoms?

Definition

may not have any symptoms and slowly gets worse and it cause symptoms as the # of leukemia cells in the blood rises

abnormal blood cells can still do their work

Term
What about acute leukemia? More commen what type of age groups?
Definition
- blood cells are very ABNORMAL, and cant carry out their normal work

- abnormal cells increase rapidly and worsens quickly

- more immature blast cells

CHILDREN
Term

What characterized acute leukemias?  chronic leukemia?

Definition
- by the malignant proliferation of immature cells-->BLAST CELLS

- proliferation of more mature cells, although transformation to a more aggressive form is common
Term

Where can l lymphogenous leukemia arise?  myelongenous leukemia?

Definition

Lymphoid cells

hematopoietic cells
    - stem cell malignancies

    - WBC precursor leukemia

    - RBC precursor leukemia

    - megakaryocytic precursor leukemia

Term
What changes are seen in both in peripheral blood and bone marrow?
Definition
abnormalities in the peripheral blood smear

WBC count
neoplastic WBCs
Secondary decreases in all other formed elements
Term
All leukemia will have bone marrow abnormalities.  T/F
Definition
true
Term

what does decreased rbcs lead to?

Definition
complaints of anemia
lethargy and SOB
Term
What does decreased WBCs lead to?
Definition

infection such as pneumonia

Term
what does decreased platelets lead to ?
Definition
ease in bruising and bleeding
Term
Burkitt's lymphoma is related to what?
Definition
Epstein Barr virus
Term
List the symptoms of leukemia
Definition
fevers (interferons)
NIGHT SWEATS
feeling weak or tired
HEADACHES
bleeding and bruising easily
pain in bones and joints
swelling or discomfort in the abdomen
swollen lymph nodes
WEIGHT LOSS
Term
What are the age group that are common leukemia?  ALL? AML? CLL? CML?
Definition
NEWBORNS - 14 yrs

15-39 and 40-60

over 60

40-60
Term

What are the proferation of ALL?  characteristics?

Definition
lymphoblasts

anemia
thrombocytopenia
increased WBC
lymphadenopathy/splenopathy

B or T cell
TdT+
Term
what are the proliferation of AML?  characteristics?
Definition

MYELOBLASTS
anemia
thrombopenia
increased WBC

myeloid, monocytes, RBC or megakaryocytic
Term
what are the proliferation of CML? characteristics?
Definition
1 of  myeloproliferative DZ
mature granulocytes
anemia
spenomegaly

Philadelphia chromosomes
Term

What are the characteristics of CML?

Definition
long chronic phase
blast crisis
hydroxyurea, interferons
BONE MARROW TRANSPLANTATION
Term
What is Myelofibrosis?
Definition
marrow becomes fibrotic
extramedullary hematopoiesis
dry tap

teardrop RBC
myeloproliferative, toxin, infection
Term
What is the proliferation of CLL? characteristics?
Definition
small mature B lymphocytes

lymphadenopathy
may have Ab production and AIHA
50% 5 year survival
Term
Where does leukemia typically orginate from
Definition
bone marrow
Term
Which of the following is specific to CML and distinguishes it from the other types of Leukemia?

a. philadelphia chromosome
b. anemia
c. splenomegaly
d. increased WBC count
Definition
philadelphia chromosomes
Term

What is multiple myeloma?

Definition

Neoplasm of plasma cells
    monoclonal protein in serum

    proteinuria Benee-jones


renal failure

Term

patients younger than 30 years old, nodal enlargement is usually benign DZ or malignant DZ?  > 30 years old

Definition
benign

malignant
Term
What does painful nodes imply? localized?  generalized?
Definition
inflammation

drain sites of infection
anterior cervical nodes and inguinal nodes

SLE
Term
WHat does painless nodes imply?  localized? generalized?
Definition
malignancy

axillary nodes in breast cancer
hodgkin's lymphoma

metastasis in leumkemia
follicular B cell lymphoma
Term

What is infectious mononucleosis? symptoms?

Definition
acute infection with EBV

adolescent, young adult

fever,sore throat, splenomegaly fatigue

heterophile antibodies

self limited
Term

what are types of lymphomas?

Definition
hodgkin's DZ

non-hodgkin's lymphoma

is nodal based malignant proliferations of lymphoid cells
Term
What is MALT?
Definition
proliferation of mucosal associated lymphoid tissue

small lymphoid cells with/out abundant cytoplasms

may tranform to large cell lymphoma
medium survival of 8 yrs
Term
what is Hodgkin lymphoma?
Definition
related to EBV
Reed sternberg cell

starts in a single lymph node or single chain of nodes

large painless lymph nodes ( neck)
fever , malaise, night sweats

GOOD KIND
TX: external radiation alone or with combo chemo
Term
what is NON hodgkin's
Definition
BAD ONE

less responsive to TX
Term
What happens in Hodgkin lymphoma?
Definition
nodular lymphocyte predominant
nodular sclerosis
mixed cellurity
lymphocyte depleted
Term
What are the finding in acute leukemia?

ANT
Definition
anemia, neurtopenia, thrombocytopenia

fever bleeding fatigue

Immature white blood cells
Term
what are the findings in Chronic leukemia?
Definition
insidious onset
hepatosplenomegaly
generalized lymphadenopathy
Term

what are the two types of premalignant conditions?

Definition
myeloproliferative syndromes( MPS)

myelodysplastic syndrome(MDS)
Term
What are The clinical features of leukemia?
Definition
anemia
 fever
bleeding tendency
tender bones
lymphadenopathy
spleenomegaly
Term

What is lymphoma? Types?

Definition
tumors of lymphoid tissue

lymphadenopathy

fever
 Hodgikins
non hodgkins
burkitt
Term
what is burkitt lymphoma?
Definition
very aggressive tumor of mature B cells that arise at extranodal sites is uniformaly associatied with translocation

involving the c-MYC protooncogene
EBV
Term
What is hodgkins?
Definition
PAINLESS
increase in eosinophils
Reed sternberg cells-B lymphocytes
Term
What is non hodgkins lymphoma
Definition
NO RS cells or eosinophil
large group of different lymphomas
Term

What is multiple myeloma

Definition
lytic bone lesions
old age
malignancy of plasma cells- B lymphocytes
marked antibody production - monoclonal
hyper gamma globulinemia-- BLINDNESS
immunodefeiciency
Term
What is HEMOPHILIA? A? B?
Definition
- is deficiency of factor 8-- blood transfusion


- deficiency of factor 9
Term
What is autoimmune thrombocytopenic Purpura? diagnosed? interventions include?
Definition
large ecchymosis or petechial rash on arms, legs, upper chest, and neck

by decreased platelet count and large numbers of megakaryocytes in the bone marrow

therapy to prevent bleediing
drug therapy to suppress immune fx
blood replacement therapy
splenectomy
Term

what is thrombotic Thrombocytopenic purpura TPP

Definition
- rare disorder
- platelets clump together abnormally in the capillaries
- in appropriate clotting, yet blood fails to clot properly when trauma occurs

- plasma pheresis, infusion of FFP
-aspirin, alprostadil, plicamycin
immunosuppressive therapy
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