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45 Cards in this Set

  • Front
  • Back
What is wrong in leukocyte adhesion disorder?
Deficient selection of CD11a/CD18
What's wrong in a phagocytosis defect
ex. decreased opsonins in Bruton's agammaglobulinemia
what's wrong in microbicidal defect?
ex. deficiency of myeloperodixase
What sort of pathogens will you find in a leukocyte function disorder?
coagulase negitive staphylococcus, growth failure in children, frequent infections, lack of an inflammatory response, severe gingivitus
What is typical of a leukamoid reaction?
absolute leukocyte count great than 50k per microliter, can be from perforating appendicits (neutrophils), whooping cough (lymphocytes), cutaneous larva migrans (eosinophils)
neutrophilic leukocytosis
above 7,000 microliter from infection, or sterile inflammation with necrosis (MI), drugs (corticosteroids)
Common leukemia newborn to 14
ALL
common leukemia 15-39 years
AML
common leukemia 40-60 years
CML
Common leukemia 60+years
CLL
Signs of acute leukemia
arupt fever, bleeeding, fatigue, hepatosplenomegaly, lymphadenopathy, CNS involvement (esp ALL), skin (esp T cell), bone pain and tenderness
Labs in ALL
peripheral WBC less than 10k to more than 100K per microL, blasts more than 20%, normoto macrocytic anemia, thrombocytopenia
Type of bone marrow in ALL
more than 20% blasts, hypercellular
Clinical findings in chronic leukemia
hepatosplenomegaly and generalized lymphadenopathy; insiduous onset
Lab findings in a chronic leukemia
peripheral-blasts usually less than 10%, normocytoic to marcocyteic anemia thrombocytopenia in CLL (CML has thrombocytosis in 40% of cases)
bone marrow in chronic leukemia
hypercellular with less than 10% blasts
Types of chronic myeloproliferative disorders
polycythemia, vera, CML, myeloid metaplasia, Essential thrombocyotpenia
General characteristics of myeloproliferative disorder
splenomegaly, reactive marrow fibrosis, can transform to acute leukemia
Lab signs for polycythemia vera
increase Hb, Hct, and RBC count, low epo

(RBC count=RBC mass/plasma volume)
relative polycythemia
increased RBC count due to volume deplation, RBC mass should be normal as EPO, often after exercising
Appropriate abosolute polycythemia
due to hypoxic cause of EPO release (lung disease, congenital heart disease, Living at high alt) probably will have low O2 sat and normal plasma volume
Clinical symptoms of p. vera
ruddy face, pruritus after bathing, peptic ulcer disease (histamine release) thrombotic events (hyperviscous blood), gout, splenomegaly
Risk factors for CML
prior ionizing radiation and benzene
Chromosomal abnormality and tx for CML
Philadelphia chromosome; 9;22, imantinib (gleevac),
how long to get a blast crisis for CML
approx 5 years
lab findings in CML
peripheral WBC 5ok-100k/microL, myeloid in all stages, thrombocytosis n 40-50% of cases (thrombocytopenia in the others),
Is leukocyte alkaline phosphate (LAP) ncreased with CML
no, decreased. LAP is absent in neoblastic cells
number of cells that have philidelphia chromosome in CML? Bcr-abl
95% philidelphia, (philiedlphia can be present in other leukemias as well) and 100% with BCR-ABL fusion
Clinical findings of myelofibrosis and myeoloid metaplasia
peripheral WBC 10k microliters to 50k microliters, massive splenomegaly with portal hypertension, splenic infarcts with left sided pleural effusions
Myelodysplastic syndrome lab findings
severe pancytopenia, dimorphic RBC pop (both microcytic and macrocytic), ringed siderblasts in marrow (nucleated RBCs with excess iron)
treatment fo AML?
Induction: chemotherapy “7 + 3” cytarabine (ara-C; cytosine arabinoside) + daunorubicin (or idarubicin)
consolidation:High dose ara-C (aka Cytarabine) (HidAC)

fludarabine (used in minitransplant)
chromosomal translocation in APL M3?
t(15;17), treatment with transretinoic acid or ATRA (all trans retinoic acid)
Smear finding in AML cells
Auer rods in M1 (rare)-M4 (common)-splinter shaped to rod shaped in cytosol
auer rods ONLY in AML NOT CML
clinical findings in AML
DIC, gingival infiltration (esp M5),
Most common subtype of ALL
early pre-b cell (80%) of cases has CALLA, CD10, Tdt, and 90% complete remission
Common places for ALL to metastasize
CNS and testis -B cell types
anterior mediastinal masses-t cell types
labs findings in ALL
peripheral WBCs 10k to 100k per microL with over 20% lymphocytes, normocytic anemia
what virus is associated with adult T cell leukemia?
HTLV-1 human t cell leukemia virus
treatments for ALL
Daunorubicin, Prednisone, Vincristine, L-asparaginase

consolidation: High dose ara-C (aka Cytarabine) (HidAC)

HyperCVAD - Cyclophosphamide, Vincristine, Adriamycin (Doxorubicin), Dexamethasone then later, Methotrexate, Ara C - ALL
bone marrow findings in ALL
lytic bone lesions and marrow replaced by CD4 lymphocytes
What is the most common leukemia overall?
CLL
pathogenesis of CLL?
neoplastic disorder of virgin B cells
clinical findings in CLL
general lymphadenopathy, increased incidence of immune hemolytic anemia (both warm and cold)
lab findings in CLL
smudge cells on smear, less than 10% lymphoblasts, neutropenia, hypogammaglobulinemia
stain for harry cell leukemia
Positive trap stain