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112 Cards in this Set

  • Front
  • Back
How many WBCs should there be in a liter of blood?
WBCs: in health, there should be 4.4-11.3 x 109/L of WBCs in blood.
What percent of plasma cells are found in blood?
• Its important to know that in health, there should never be plasma cells in the blood.
Which leukocyte includes the following properties?
Bactericidal
“left shift”: increase in immature precursors
Neutrophils (PMNs)
Which leukocyte includes the following properties?
allergic, anti-parasitic, drug, neoplasms
Eosinophils
Which leukocyte includes the following properties?
immediate hypersensitivity reactions; ie, asthma
Basophils
Which leukocyte includes the following properties?
“the mononuclear phagocyte system;”
blood monocytes + those carried to peripheral tissues-> histeocyte or macrophage:

bacteria, fungi, mycobacteria, protozoa, virus, take up senescent cells, antigen presentation
Monocytes
What is the percentage of T lymphocytes compared to the rest of the lymphocytes?
80-90% of Lymphocytes
What is leukopenia usually attributed to?
A decrease in neutrophils (i.e. neutropenia or granulocytopenia)
What are the causes of Lymphopenia?
HIV
Glucocorticoids
Drugs
Autoimmune
Acute viral
Malnutrition
What can be due to Decreased Production & Increased Destruction?
Neutropenia and Agranulocytosis
What are some Drugs that are attributed to increased destruction in Neutropenia and Agranulocytosis?
◊ Alkylating agents, antimetabolites

Choramphenical, sufonamides, chlorpromazine, thiouracil
What are the clinical manifestations of Neutropenia & Agranulocytosis?
Infections (deep w/gray, green-black necrotic membranes)
Ulcerating Lesions of the:
*Gingiva
*Floor of Mouth
*Buccal Mucosa
*Pharynx
*Oral Cavity (agranulocytic angina)
*Elsewhere in body
What are the 5 pools?
1. Precursors
2. Storage
3. Circulating
4. Marginating (cells stuck to the walls of the vessels)
5. Tissues
What condition occurs due to too many leukocytes?
Reactive Leukocytosis
What is the difference in site and spread between Hodgkin's Lymphoma & NHL?
Hodgkin - Single node; contiguous; Rarely involves waldeyer ring & mesentery

NHL - Multiple nodes; Extranodal; Unpredictable spread; Waldeyer ring & mesentery
What are the broad classifications for Neoplastic Lymphoid Disorders?
1. Lymphoid Neoplasms (has Hodgkin's Lymphoma)
2. Myeloid Neoplasms
3. Histiocytoses
What is the characteristic cell found in Hodgkin's Lymphoma?
Reed-Sternberg
What are these classified as?
*Acute myelogenous leukemias
*Myelodysplastic syndromes
*Chronic myeloproliferative disorders
Myeloid Neoplasms
What cell has the following properties?

in a non-neoplastic inflammatory background (EOS)
Classically has two big nuclei that look like owl eyes.
Reed-Sternberg
What kind of cells does non-classical hodgkin lymphoma have?
Popcorn or L&H cells (lymphocytic & histeocyte Reed-Sternberg variants)
What are the types of classical Hodgkin's Lymphoma?
1. Nodular Sclerosis
2. Mixed Cellularity
3. Lymphocyte Rich
4. Lymphocyte-depleted (least favorable diagnosis)
What is the most common type of lymphoma?
Chronic Lymphocytic Leukemia (CLL)/Small Lymphocytic Lymphoma (SLL)
What type of lymphoma Always involves bone marrow & commonly the spleen. It also has Cytopenias: bleeding & infection?
CLL/SLL
What is the most common NHL?
Follicular Lymphoma
What type of lymphoma has t(14:18)?
Follicular Lymphoma

t(14:18) 14 is the heavy change locus of immunoglobulins
What type of lymphoma is: *Indulent & Incurable
*BCL-2 expression (normal germinal centers are BCL-2 neg)
*t(14:18)
*A lymph node w/many follicles; normal architecture effaced
Follicular Lymphoma
What type of lymphoma has t(11:14)?
Mantle Cell Lymphoma
What type of lymphoma has the properties:
*t(11:14)
*Cyclins D-1 protein
Mantle Cell Lymphoma
What type of lymphoma ARISES AS A SINGLE RAPIDLY GROWING, SYMPTOMATIC MASS?
Diffuse Large B-cell Lymphoma

Aggressive- requires intense chemotherapy
Large neoplastic cell size, diffuse growth pattern
What are the different types of plasma cell neoplasms?
MGUS (monoclonal gammopathy of uncertain significance)
Waldenstrom Macroglobulinemia
What is the prognosis of multiple myeloma?
Poor Prognosis
Die within 3-5 years
What is the plasma cell content in bone marrow for Multiple Myeloma?
>30% plasma cells in marrow
What type of lymphoma displays symptoms of Infection, Renal Insufficiency, Hypercalcemia (due to the break-down of bone)
Multiple Myeloma
What is significant regarding ALLs & AMLs?
They can have identical signs and symptoms
Who is affected most in ALL (Acute Lymphoblastic Leukemia)?
Younger people are affected
(80% B-cell precursors, 20% T-cell precursors)
Who is affected most in AML (Acute Myelogenous Leukemia)?
Adults
What does the cellular composition of AML look like?
Have looser nuclei
Prominent nucleoli
More cytoplasm often with Granules
What type of lesions are common with AML (Acute Myelogenous Leukemia)
Mouth/Throat Ulcers
**What type of leukemia has the following properties?
*t(15:17) PML/RARα
*usually present w/DIC
*Response to RETINOIC ACID as a treatment
Acute Promyelocytic Leukemia
What has Birbeck granules in the cytoplasm (electron microscopy)?
Langerhans Cell Histiocytosis

(neoplastic cell is a dendritic cell)
What are the different types of Myeloproliferative Disorders?
Myeloproliferative Disorders

Chronic Myelogenous Leukemia (CML)
Polycythemia Vera
Essential Thrombocytosis
Primary Myelofibrosis
What are common symptoms of Myeloproliferative Disorders?
Splenomegaly
Spent phase cytopenias and marrow fibrosis
Can progress over time to acute leukemia (CML invariably does)
What type of Myeloproliferative disorder has a Philadelphia (Ph1) chromosome: t(9:22)?
Chronic Myelogenous Leukemia (CML)

Translocation is present in 95% of cases
BCT-ABL fusion (tyrosine kinase activity; unregulated myeloproliferation!)
Gleevec (imtinib) inhibits tyrosine kinase
What stage of Acute Leukemia (AML) is M0?
minimally differentiated
What stage of Acute Leukemia (AML) is M1?
Without maturation
What stage of Acute Leukemia (AML) is M2?
With maturation (AUER RODS)
What stage of Acute Leukemia (AML) is M4?
Myelomonocytic
What stage of Acute Leukemia (AML) is M5?
M5a = Monoblasts
M5b = Monocytic
What stage of Acute Leukemia (AML) is M6?
Erythroleukemia
What stage of Acute Leukemia (AML) is M7?
Magakaryoblastic
What condition has the following features?
• Men,50-60 yrs.
• Multiple skeletal sites “punched out” lesions
§ Plasma cells invade and erode bone.
• Erode bone
• pathologic fractures
• Marrow: for diagnosis, you will have to have >30% plasma cells
§ You should normally have no more than 2%
• M-component: 55% IgG;
§ serum IgG>3.5g/dL,IgA>2g/dL
• *Rare to see plasma cells in peripheral blood
• *Infection, renal insufficiency, hypercalcemia (due to the breakdown of bone)
• Poor prognosis: Die within 3-5 years
Multiple Myeloma
What disorder has a Monoclonal spike of IgG?
Multiple Myeloma
Leukemia Clue: Children
ALL
Leukemia Clue: Myeloblasts
AML
Leukemia Clue: Auer Rods
AML, promyelocytic
Leukemia Clue: DIC
Promyelocytic
Leukemia Clue: Elderly
CLL
(chronic lymphocytic leukemia)
Leukemia Clue: Splenomegaly
CML
Leukemia Clue: Philadelphia Chromosome
CML
Leukemia Clue: Tartrate-resistant acid phosphatase
Hairy Cell
Leukemia Clue: HTLV-1
Adult T cell
What is the major difference between Multiple Myeloma & Waldenstrom Macroglobulinemia?
Lack of lytic bone lesions in Waldenstrom
What is the major difference between Acute Leukemias and Chronic Leukemias?
Acute Leukemias have blasts in peripheral blood and decreased mature cells

Chronic Leukemias have an increased number of mature WBCs in the peripheral blood
What is significant about Leukocyte alkaline phosphatase?
It is elevated in inflammatory leukocytosis

It is depressed in chronic myelogenous leukemia
Where is factor VIII synthesized?
Factor VIII is synthesized in the endothelium of vessels

(the other clotting factors are synthesized in the liver)
What condition has a JAK-2 mutation (pH absent) & Low erythropoietin levels (vs. relative polycythemias)
Polycythemia Vera
What type of lymphoma is associated w/EBV and displays a starry sky pattern?
Burkitt Undifferentiated Lymphoma
What are normal levels of hemoglobin (gm/dL)?
Male 13.6-17.2
Female 12-15
What are normal levels of HCT (hematocrit)?
Male 39-49
Female 33-43
What is the normal MCV (mean cell volume)?
82-96
What is the definition of anemia?
Reduced Oxygen carrying capacity of blood
What lab values are reduced in anemia?
hematocrit HCT
hemoglobin Hb
_______ is the percentage of whole blood that is RBCs
Hematocrit
___________________ is the coefficient of variation of red blood cell volume
Red Blood Cell Distribution Width (RDW)
_____________ is the average concentration of Hb in a volume of RBCs
Mean cell hemoglobin concentration (MCHC)
___________ is the average content of Hb per RBC
Mean Cell Hemoglobin (MCH)
_________ is the average volume of a RBC
Mean Cell Volume (MCV)
What are the causes of Megaloblastic anemia?
B12, Folate deficiency
Drug use
Why do RBC's need to have highly pliable membranes?
To navigate between splenic sinusoids
What type of anemia has a membrane that is less stable and inflexible resulting in the erythrocyte not being able to leave the spleen. Condition is congenital and the RBC life span is decreased to 10-20 days?
Hereditary Spherocytosis (hemolytic anemia)

**Mutation in ANKYRIN, a component of the RBC membrane
What type of anemia protects against malaria?
Glucose-6-Phosphate Dehydrogenase Deficiency (G6PD)
What shows up clinically as hemolysis after exposure to oxidant stress (drugs, foods-fava beans, infection)?
G6PD deficiency
What is shown in this picture and what anemia causes it?
Bite cells & Heinz Bodies

Caused by G6PD deficiency
In sickle cell disease defective hemoglobin is produced due to ________
Valine instead of Glutamic acid
Among those with sickle cell disease (S/S), what percentage have what types of hemoglobin?
80% HbS
20% HbF
NO HbA
Among those with sickle cell trait(A/S), what percentage have what types of hemoglobin?
60% HbA
40% HbS
What is the abnormal hemoglobin in sickle cell patients?
HbS
What is the % hemoglobin of normal adults?
96% HbA
What is the % hemoglobin of normal babies?
75% HbF
25% HbA
What is the problem with HbS being sticky?
The stickiness leads to cells “hanging” around in these sluggish areas; which exposes them to hypoxic environmnet, the sickling persists, the tissues become inflamed, blood flows EVEN SLOWER, WBCs release pro-imflammatory cytokines; it’s a vicious cycle!!!
What are the treatments for sickle cell anemia?
Hyroxyurea: increases HbF, which inhibits polymerization of HbS, decreased inflammation

Crises: exchange transfusion
What are Thalassemias?
Decreased synthesis of NORMAL alpha or beta hemoglobin chain
What is the problem we run into with Alpha Thalassemia?
Excess of unpaired Beta chains
What is the problem we run into with Beta Thalassemia?
Excess of unpaired Alpha chains
Where does hemolytic anemia (increased destruction)occur?
Mostly in Spleen (EXTRAVASCULAR HEMOLYSIS)

Rarely in the vessels (INTRAVASCULAR HEMOLYSIS)
What type of anemia is congenital with a mutation in ANKYRIN, a component of the RBC membrane?
Hemolytic Anemia: HS (hereditary spherocytosis)
What type of anemia protects against Malaria (plasmodium falciparum)?
Hemolytic Anemia: G6PD deficiency

Glucose-6-Phosphate Dehydrogenase Deficiency
What is:
- An intermittent hemolytic anemia of OLDER RBCs
- Hemolysis after exposure to oxidant stress (drugs, foods-fava beans, infection)
- Heinz bodies (MACROPHAGES IN SPLEEN PLUCK THEM OUT OF MEMBRANE -> BITE CELLS
Hemolytic Anemia: G6PD Deficiency
In Hemolytic Anemia: Sickle Cell Disease, those with disease have what type of hemoglobin?
80% HbS
20% HbF

**NO HbA**
In Hemolytic Anemia: Sickle Cell Disease those with trait (A/S) what is the hemoglobin content?
60% HbA
40% HbS

Patient functions fairly well
Which Thalassemia targets cells?
Beta Thalassemia
What condition has an acquired defect in RBC membrane, a mutation in phosphatidykinositol glycan A (PIGA), a GPI protein
Paroxysmal Nocturnal Hemoglobinuria (PNH)
Which disease has RBCs susceptible to lysis by complement - there is a decrease in ALL GPI proteins

*CD55, 59
Paroxysmal Nocturnal Hemoglobinuria (PNH)
In Paroxysmal Nocturnal Hemoglobinuria (PNH), ALL RBCs ARE NOT AFFECTED. Why?
A mutant clone exists as well as normal RBCs Present
In RBC destruction due to trauma what shows up on a peripheral smear?
RBC fragments AKA SCHISTIOCYTES
What test for Immunohemolytic anemia demonstrates AB or complement bound to patient's RBCs?
DAT (direct antiglobulin test) "Coombs Test"

- antihuman Ig
- a + test has clumping/agglutination
What disease has laboratory findings of Hypochromic microcytic anemia (Decreased MHC & MCV)?
Iron Deficiency Anemia
What is important regarding anemia of chronic disease?
Impaired Fe utilization secondary to a chronic disease (i.e. rheumatoid arthritis, infections)
What type of anemia has Hypersegmented neutrophils & pancytopenia?
megaloblastic anemia
What are the properties of polycythemia?
- Non-clonal increase in the concentration of red blood cells unlike myeloproliferative disorders
- Causes: Increased EPO (tumor or hypoxemia) & Dehydration
- Clinically patients present w/difficulty breathing & thrombosis
- Treatment includes therapeutic phlebotomy or hydration
What type of anemia presents clinically as:
- mucocutaneous bleeding and infections
- splenomagaly
- reticulocytopenia
- normocytic, normochromic anemia
Aplastic Anemia
***************
Will vessel wall damage affect blood test results?
No