Acute Leukemias Flashcards
ALL cases more frequently involve _____ cells (~80%).
B
__-ALL is more commonly seen in adolescents and young adults.
T
__-ALL is more commonly seen in children.
B
__-ALL is more commonly seen in men than women
T
__-ALL is more likely to present with a large mediastinal mass.
T
B-ALL has a ______ prognosis than T-ALL.
better
B-ALL is more commonly seen in _____ (demographic).
children
Cytogenetic abnormalities associated with AML due to CBFB-MYH11
inv(16)(p13.1;q22) or t(16;16)(p13.1;q22)
Cytogenetic abnormality associated with a poor prognosis AML
11q23 MLL
Cytogenetic abnormality associated with AML due to RNX1-RNX1T1
t(8;22)(q22;q22)
Cytogenetic abnormality associated with AML with megakaryoblastic differentiation
t(1;22)(p13;q13), RBM15-MKL1
Cytogenetic abnormality associated with APML
t(15;17)(q22q22)
Cytogenetic abnormality most often seen in infants with Down Syndrome
t(1;22)(p13;q13), RBM15-MKL1
Cytogenetic finding associated with AML with monocytic differentiation
11q23 MLL
Cytogenetic finding associated with B-ALL in neonates and young infants
11q23 MLL
Cytogenetic finding associated with the worst prognosis of any ALL
T(9;22)(q34;q11.2), BCR-ABL
Cytogenetic finding with B-ALL with a very favorable prognosis
t(12;21)(p13;q22), ETV6-RUNX1
Findings to diagnose AML (2)
Myeloblasts >20% of nucleated cells in marrow or peripheral blood, cytogenetic findings
Fused azurophilic granules that form small stick-like structures in the cytoplasm
Auer Rods
Genes associated with AML cases seen in younger patients with relatively good prognosis?
RNX1, CBFB
How is ALL prognosis affected by age?
Worst in infants, older children, or adults
How is ALL prognosis affected by chromosome ploidy?
Hyperdiploidy is associated with better prognosis
How is ALL prognosis affected by response to therapy?
Slow response is worse prognosis
How is ALL prognosis affected by T vs. B ALL?
B-ALL has better prognosis
How is ALL prognosis affected by WBC count?
Worse for higher count
Molecular markers currently used to predict prognosis in patients with AML with normal karyotype (3)
FLT3 ITD, NPM1, CEBPA
Negative prognostic factor associated with normal karyotype AML
FLT3 ITD
Potential complication of t(15;17)(q22;q22)
DIC
Prognosis of t-AML
Very poor
T-ALL has a _____ prognosis than B-ALL.
worse
T-ALL is more commonly seen in _____ (demographic).
adolescents and young adults
t-AML with complex karyotype, frequently whole or partial loss of chromosomes 5 or 7
Secondary to alkylating agents or radiation
t-AML with latency 1-2 years
Secondary to Topoisomerase II inhibitors
t-AML with latency 2-8 years
Secondary to alkylating agents or radiation
t-AML with rearrangement of MLL gene
Secondary to Topoisomerase II inhibitors
Therapy-related AML with an MDS stage
Secondary to alkylating agents or radiation
Treatment for t(15;17)(q22;q22)
All-Trans Retinoic Acid (ATRA) with arsenic salts
Type of acute leukemia and prognosis? t(15;17)(q22;q22)
Acute Promyelocytic Leukemia; best remission rates for AML
Type of ALL and prognosis? 11q23/MLL
B-ALL, poor
Type of ALL and prognosis? t(12;21)(p13;q22), ETV6-RUNX1
B-ALL, very good
Type of ALL and prognosis? T(9;22)(q34;q11.2), BCR-ABL
B-ALL, worst of all ALL
Types of therapy-related AML
Secondary to alkylating agents or radiation, Secondary to Topoisomerase II inhibitors
What feature can be used to distinguish abnormal myeloblasts?
Auer Rods
Which acute leukemia shows predomination of promyelocytes?
Acute Promyelocytic Leukemia; best remission rates for AML