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Hematology Facts For Boards II
Hematology Facts for Boards II
96
Medical
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10/19/2006

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Term
BMBx findings in ITP
Definition
Megakaryocytes are present in normal to increased numbers, generally with a shift towards younger megakaryocytes
Term
when should iron chelation start in pts with thalassemia?
Definition
at ferritin > 1000
Term
The protein which is abnl in CDA-1
Definition
codanin-1, involved in nuclear membrane activity
Term
Bleeding d/o which is associated with "extreme thrombocytosis" in MP d/o.
Definition
acquired VWDz
Term
70% of infants with ALL have a transloaction ivolving this chromosome, and this gene.
Definition
chromo 11, gene 11q23
Term
Fusion genes associated with inv(16)?
Definition
MHY11 and CBFb genes
Term
Main side effect of EPO alfa = ?
Definition
HTN in CRF patients.
Term
T or F: EPO spares most chemo pts from getting transfused.
Definition
False: 6 pts must be treated with EPO to prevent one transfusion.
Term
When using EPO< what should the ferritin and transferrin levels be maintained?
Definition
Ferritin > 100, transferrin > 20%.
Term
Mutations in Mpl cause a rare pediatric disorder.
Definition
Amegakaryocytic t-penia.
Term
the primary site of thrombopoietin production in vivo
Definition
liver
Term
ITP cause = ?
Definition
Increased plt turnover (NOT decreased production--TPO levels are normal or high)
Term
TPO levels in aplastic anemia = ?
Definition
high
Term
Most important side effect of the currently tested exogenous TPO = ?
Definition
Anti-TPO antibodies formed in 4%, with subsequent t-penia.
Term
How does recombinant IL-11 work?
Definition
IL-11 promotes CFU-Meg growth
Term
What is the role of Oprelvkin in SCT?
Definition
Oprelvekin does not significantly enhance platelet recovery or decrease the need for platelet transfusions following autologous stem cell transplantation.
Term
What is the role of oprelvekin in chemo-induced t-penia?
Definition
oprelvekin is effective for primary prevention of chemotherapy-induced thrombocytopenia in patients receiving moderately dose-intensive chemotherapy
Term
Main 3 side effects of oprelvekin = ?
Definition
fluid retention, atrial tachyarrhythmias, myalgias/arthralgias. NOTE: fever is NOT a side effect.
Term
Does GCSF have an effect on long-term survival of AML patients?
Definition
No.
Term
What is CAM- and what does it do?
Definition
vascular cell adhesion molecule, which keeps cells in marrow; neutrophil granules contain elastase and cathepsin, and these proteases cleave vascular cell adhesion molecule-1 from the surface of bone marrow stromal cells. Release of this tether facilitates the egress of hematopoietic cells from the bone marrow into the blood.
Term
When is GCSF indicated in outpt chemotx regimens?
Definition
When risk of febrile NTP >= 40%
Term
How do patients with Kostman syndrome present?
Definition
Patients with Kostmann syndrome present in infancy with neutrophils <200/mL, an arrest in myeloid maturation at the promyelocyte–myelocyte stage in the marrow, and recurrent infections.
Term
Side effect of GMCSF that is NOT common in GCSF = ?
Definition
Fever (22%). Also, fluid retention/dyspnea.
Term
Pts with this disease should NOT receive filgrastim.
Definition
Sickle cell disease.
Term
A dose of peg-filgrastim is equal to a how many does of filgrastim?
Definition
a single dose of pegfilgrastim provides neutrophil support comparable with that provided by 11 daily injections of filgrastim
Term
4 adverse cytogenetic findings in adult ALL.
Definition
9;22, 4;11, trisomy 8, hypodiploidy (esp < 45 chromos)
Term
a WBC count higher than this protends badness for ALL patients.
Definition
50,000
Term
ALL in infancy with poor prognosis is often associated with this chromosomal abnormality.
Definition
11q23
Term
What phenotype is t(1;19) associated with?
Definition
pre-B cell ALL
Term
Prognosis for t(1;19)?
Definition
With modern treatment, the t(1;19), associated with a pre-B phenotype, no longer has an unfavorable prognosis.
Term
treatment of choice for Ph-positive ALL in first CR for all age and WBC risk groups
Definition
matched sibling allo SCT
Term
Clinical features associated with a higher rate of CNS relapse (4)
Definition
BTLP: mature b-cell, T-cell, high LDH level, high proliferative index.
Term
When should imatinib be used in ALL?
Definition
Only in relapsed, PH+ patients, and even then, responses (if any) tend to be short-lived.
Term
defect which sometimes results in fatal clostridium infection
Definition
cyclic neutropenia
Term
infections caused by catalase-positive organisms including Staphylococcus aureus and Aspergillus species
Definition
chronic granulomatous disease
Term
This disorder is caused by mutations in one of the components of the NADPH oxidase system that results in a failure to generate the oxidative burst within the neutrophil
Definition
chronic granulomatous disease
Term
x-linked gene involved in CGD
Definition
CYBB
Term
sex of most CGD patients = ?
Definition
male
Term
abnormal nitroblue tetrazolium (NBT) test
Definition
chronic granulomatous disease
Term
mildly neutropenic, recurrent infections, blood smear shows large, blue-staining granules in cytoplasm
Definition
Chediak-Higashi syndrome
Term
Neoplastic disease which is more common in FMF patients.
Definition
Because the chronic recurrent inflammatory attacks also cause persistent elevations of serum amyloid A (AA) protein, patients with FMF are at high risk of developing complications of AA amyloidosis, especially in the kidneys.
Term
Tx for FMF (prophylactic) = ?
Definition
colchicine
Term
2 malignancies that can result in monocytosis.
Definition
NHL and HDz
Term
fever, lymphadenopathy, hepatosplenomegaly, rash, neurologic signs, cytopenias, coagulopathy (especially hypofibrinogenemia), hypertriglyceridemia, hyperferritinemia and abnormal liver function tests
Definition
HLH
Term
mutations involving the PRF1 gene, encoding perforin, which leads to this disease
Definition
FHL
Term
Tx options for HLH (6) include?
Definition
intravenous immunoglobulin, cyclosporine A, etoposide, cyclophosphamide, splenectomy and plasmapheresis
Term
cells that express surface CD1a and cytoplasmic S-100
Definition
Langerhans cell histiocytosis
Term
long-standing LCH lesions have this histologic appearance
Definition
foamy macrophages and fibrosis
Term
three markers expressed on Langerhans cells (co-expressed)
Definition
cd1a, cd33, cd14
Term
chromo abnormalities in LCH = ?
Definition
none
Term
isolated bony involvement resulting in ear drainage is more common in children and pulmonary disease occurs predominantly in adults
Definition
LCH
Term
this endocrine d/o is found in 30% of Langerhans patients
Definition
diabetes insipidus
Term
treatment for single-site LCH disease
Definition
local therapy: surgery, curettage, XRT
Term
treatment for systemic mastocytosis patients with painful/unstable skeletal lesions
Definition
interferon-alpha
Term
treatment for systemic mastocytosis with HSM, portal HTN, marrow suppression, and NO bony cxs
Definition
steroids and INF-alpha
Term
mastocytosis and HES with this fusion gene respond to imatinib
Definition
FIP1L1-PDGFRA fusion gene
Term
eo count req'd for dx of HES
Definition
1500
Term
what sex gets HES more often?
Definition
men, at a 9:1 ratio
Term
this is the major cause of death in HES
Definition
cardiac infiltration
Term
how is diagnosis of eosinophilic infiltration of heart made?
Definition
endomyocardial biopsy
Term
initial tx of choice in hypereosinophilic syndrome
Definition
imatinib
Term
most sensitive way to dx CML = ?
Definition
RT-PCR of peripheral blood
Term
% blood or marrow blasts in blast-phase CML = ?
Definition
20%
Term
conditioning regimen for CML x-plant
Definition
cyclophosphamide/busulfan
Term
How long after completion of anticoagulation should one wait before doing protein C, S, AT-II tests?
Definition
2 weeks
Term
Yearly incidence of DVT for pt on OCP and having FVL mutation (homozygous)?
Definition
0.3%
Term
What is the antibody in cold agglutinin disease? In PCH?
Definition
cold agg dz = IgM, PCH = IgG
Term
What is the antigen in cold agglutinin disease?
Definition
I and i
Term
Of the AIHAs (3 types), which does NOT respond to steroids?
Definition
Cold agglutinin.
Term
Of the AIHAs (3 types), which does respond to splenectomy?
Definition
Warm antibody disease.
Term
Goal ferritin level in hereditary HC?
Definition
<50ug/dL
Term
Type IIa VWD has been associated with what physiologic problem?
Definition
aortic stenosis
Term
Pregnant women with thrombosis (or high-risk for same) should get what regimen?
Definition
LMWH q12h for pregnancy and until 6 weeks post. Factor Xa activity should be followed.
Term
Intermediate risk (for thrombosis) in pregnant women should be treated with this regimen.
Definition
LMWH @ prophylactic dose (40 daily) or heparin at prophylactic dose (5000-10000 bid) for pregnancy and for 6 weeks post.
Term
FVL (heterozygous) and PT 20210 pts should get this prophylaxis during pregnancy.
Definition
Observation only; no tx unless prior hx of clot.
Term
Treatment of HELLP?
Definition
Expedite delivery.
Term
What bacteria most often contaminates platelets?
Definition
yersinia enterocolitica
Term
Median age at dx of MDS
Definition
64 years old
Term
These three childhood disorders greatly increase the risk of MDS.
Definition
Schwachman-Diamond, congenital neutropenia, MDS.
Term
Progressive macrocytic anemia in early childhood, normal cellularity of the bone marrow with markedly decreased or absent erythroid precursors, reticulocytopenia.
Definition
Diamond-Blackfan anemia
Term
Treatments for Diamond-Blackfan anemia (3).
Definition
Steroids, x-fusions, allo-SCT.
Term
Anemia, splenomegaly, gallstones, multinucleated erythroblasts.
Definition
congenital dyserythropoetic anemia
Term
Taqman PCR is a.k.a.?
Definition
real-time PCR
Term
Three things considered in the MDS IPSS score = ?
Definition
BKC (blasts, karyotype, cytopenias)
Term
low-risk (zero) IPSS score in MDS = survival for how long?
Definition
5.7 years
Term
high-risk (2.5) IPSS score in MDS - survival for how long?
Definition
0.4 years (5 months)
Term
4 cytogenetic markers of good px in MDS = ?
Definition
normal, 5q-, Y abnormalities, 20q
Term
4 cytogenetic markers of poor px in MDS = ?
Definition
5-, 7-, trisomy 8, complex karyotype
Term
what % of 5q- pts will become overt MDS?
Definition
25%
Term
What % of MDS patients will respond to EPO?
Definition
25%
Term
This is the serum EPO level associated with good response to EPO supplementation in MDS.
Definition
<500 u/l
Term
Who should be considered for x-plant in MDS? (3)
Definition
Patients with advanced MDS (int-2 and high by IPSS), a sibling donor and a good performance status
Term
What special consideration needs to be given to Fanconi patients undergoing x-plant for MDS?
Definition
Conditioning regimen needs to be modified, as chromos are very susceptible to toxins.
Term
How does azacytidine work?
Definition
Inhibition of DNA methylation.
Term
which chromo is alpha globin gene on?
Definition
16
Term
which chromo is beta globin gene on?
Definition
11
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