Wright Heme lecture Flashcards
Name the 4 main types of leukemia.
Acute Myeloid leukemia
Chronic Myeloid Leukemia
Acute Lymphoblastic Leukemia
Chronic Lymphocytic Leukemia
What are the signs and symptoms of leukemia?
Leukocytosis Pancytopenia Hypogammaglobulinemia Bone pain LAD spelnomegaly
What test should be done in all patients suspected to have leukemia
Bone marrow biopsy
What is the most common leukemia in adults?
AML
What pathologic finding is diagnostic of AML
Auer rods on biopsy
Circulating blasts >20%
First line treatment for AML
Chemo then Stem cell transplant
Prognosis for AML
not great, only 1/3 of patients are cured
What is the most common childhood malignancy?
Acute lymphoblastic leukemia
Peak incidence of ALL?
2-5 y.o.
Increased incidence of ALL with what genetic disorder?
Down Syndrome
Most common cell linages effected by ALL?
B cell lineage( 85%), then T (15%), then NK (1%)
Treatment for ALL?
Chemo
Prognosis for ALL?
Curable, with 85% 5 year survival, but high dose chemo in kids increases risk of long term complications
Good prognostic indicators in ALL?
Hyperdiploid (>50 chromosomes per cell)
2-10 y.o.
CD10 +
low WBC count
Poor prognostic indicators in ALL?
Hypodiploid
<2 or >10 y.o.
Male gender
High WBC count (>100k)
What is CAR-T therapy?
Therapy for ALL that removes T cells and trains them to attack neoplastic B cells. It is so effective that the B cells are killed so rapidly it causes cytokine storm.
What leukemia is a Philadelphia chromosome seen in?
Chronic Myeloid Leukemia
Philadelphia chromosome results from fusion of 2 genes. What are they?
ABL on chromosome 9 and BCR on chromosome 22
After what age are most CML diagnoses made?
After age 50
What are the treatment options for CML?
Stem cell transplant - risky but curative
Oral chemotherapy - low risk, can manage disease but not cure it
Chronic Lymphocytic leukemia is most often diagnosed after what age?
after age 70
CLL more common in men or women?
Men
What pathology finding on cytology is suggestive of CLL?
Gingersnap appearance of cells
What are the 2 main categories of lymphoma and how do you distinguish between them?
Hodgkin Lymphoma - presence of reed sternberg cells on biopsy
Non-Hodgkin lymphoma - absence of reed sternberg cells on biopsy.