Hematology Flashcards
Fanconi Anemia
- usually pancytopenias
- absent/abnormal thumbs
- other congenital anomalies
Diamond-Blackfan Anemia
macrocytic anemia usually in first year of life
lots of congenital anomalies
Transient Erythroblastopenia of Childhood (TEC)
self limited normocytic anemia between age 1-3
MDS can transform to
AML
Treatment of CML
Tyrosine kinase inhibitors (TKIs)
imatinib, dasatinib, and nilotinib
Polycythemia Vera
JAK 2 + low EPO
transform to AML
Rx phlebotomy, ASA, hydroxurea
Essential Thrombocytosis
1/2 of ppl will have JAK2 mutation
asymptomatic or vasomotor symptoms (HA, parathesias)
Common cause of reactive thrombocytosis
IDA
Essential Thrombocytosis Complications
thrombosis
hemorrhage
acquired VWD and increased bleeding risk
Treatment of Essential Thrombocytosis
hydroxyurea if >1,000,000
ASA for vasomotor/high risk
Primary Myelofibrosis Presentation
Usually symptomatic on presentation
- Cytokine-related hypercatabolic symptoms, such as fatigue, weight loss, fever, and chills
- Splenomegaly, abd distension
- extramedullary hematopoiesis
Primary Myelofibrosis Treatment
BMT
if JAK2 mutation, can use Ruxolitinib
Causes of Eosinophilia
CHINA C- collagen vascular disease H- Helminth infection (Strongyloides) I- idiopathic N- neoplasm; lymphomas and myeloproliferative A- allergy, atopy, asthma
Medications Associated with Eosinophilia
carbamazepine, sulfonamides
Hypereosinophilic Syndrome
eosinophils >1500
end-organ damage attributed to eosinophilia, typically affecting the skin, lungs, heart, gastrointestinal tract, and brain
Hypereosinophilic Syndrome Treatment
steroids
Definition of Acute Leukemias
more than 20% blasts
Acute promyelocytic leukemia
chromosomal translocation t(15;17)
treatment with all-trans retinoic acid
AML treatment
induction therapy with an anthracycline (such as daunorubicin) and infusional cytarabine.
ALL in adults
tends to be B cells
can have Philadelphia chromosome
can have CNS involvement
Anemia associated with CKD
Use darbopoetin/EPA for Hgb <10 in those with HD; do not increase to >11.5
However iron stores must be normal for EPA to work, so if low, administer iron prior to EPA
Screenings for adult survivors of leukemia
lipid profile
a1c/glucose
ECHO if anthracycline received
Elevated RBC association
thalassema
Corrected retic count
Retic % x hgb/normal hgb
normal hgb: 40 for women, 45 for men
MGUS
M protein less than 3
or less than 10% plasma cells on bone marrow
no end organ damage!
Multiple Myeloma - CRAB
Hypercalcemia
Renal Disease
Anemia
Bone Disease
Lenalidomide and pomalidomide adverse effects
VTE
Bortezomib AE
peripheral neuropathy
herpes zoster reactivation
Light chain amyloidosis
cardiac involvement is common
Waldenström macroglobulinemia (WM) i
indolent B cell lymphoma
secrete IgM
can develop hyperviscosity syndrome
Type I cryoglobulinemia
monoclonal immunoglobulin- usually IgM, associated with plasma cell dyscrasia
asymptomatic or hyperviscosity, thrombosis
Type II or III cryoglobulinemias
mixed
associated with hep C, connective tissue diseases
Treatment of skeletal lesions in multiple myeloma
Zoledronic acid and pamidronate
Treatment of acquired hypogammaglobulinemia associated with multiple myeloma
IVIG
will present with recurrent infections
Evaluating for bone lesions in smoldering multiple myeloma
Whole body MRI
Diagnosis of amyloidosis
if whole body symptoms- consider fat bad biopsy (less invasive)
otherwise, consideration of renal biopsy
5 Causes of Microcytic Hypoproliferative Anemia
F- IDA L - Lead poisoning A - ACD T - thalassemia S - sideroblastic anemia
IDA Symptoms (board question style)
PICA
Restless Leg Syndrome
Dysphagia due to esophageal web or stricture/Plummer-Vinson Syndrome
IDA Lab Tests
decreased Iron
Increased TIBC and transferrin
decreased transferrin sat
decreased ferritin
IDA- Oral Fe Treatment will work in
6 weeks; therapy for 3-6 months
Beta Thalassemia’s
Minor: 1 normal allele, microcytic anemia
Intermedia: ?
Major: deletion of both alelles; severe hemolytic microcytic anemia
Alpha Thalassemia’s
Minima: no abnormalities
Minor/Trait: microcytosis and/or anemia
Hemoglobin H: microcytic anemia w/ hemolysis
Hydrops Fatalis
Causes of Sideroblastic Anemia
Lead, Alcohol, Linezolid
MDS
Symptoms of Lead Poisoning
abdominal pain, motor neuropathy
Lead Poisoning Treatment
EDTA chelation
soluble transferrin receptor
elevated in IDA, normal in ACD
ACD Labs, differences from IDA
normal or elevated ferritin
normal or decreased TIBC
Causes of Normocytic Anemia
ACD, Renal Failure
Thyroid Disease
Aplastic Anemias, Pure Red Cell Aplasias
MDS, MM, etc
Teardrop cells
MDS
Methylmalonic acid and homocysteine
Both elevated in B12
Only homocysteine elevated in folate
Differential for Macrocytic Anemia
B12, folate, alcohol
MDS
Liver disease, hypothyroidism
Extravascular Hemolysis
- red cells removed by liver an spleen
- spherocytes on smear
- urine negative for Hgb and hemosiderin
Intravascular Hemolysis
- red cells lyse while in circulation
- urine positive for Hgb and hemosiderin
What is elevated reticulocyte count?
Greater than 2%
Spherocytes differential
Dat + AIHA
Dat - hereditary spherocytosis
Bite Cells
G6PD
Goal Ferritin level in Anemia of Renal Disease
> 100
transferrin saturation >20%
Pernicious Anemia Antibodies
parietal cells > intrinsic factor Ab
What can be determined on electrophoresis
alpha thal- Hemoglobin H
Sickle cell disease
all Beta thals
Treatment of Thalassemias
folate supplementation
avoid iron as easily overloaded