Translocation (8;12;21)(q22.1;q24.1;q22.1): a new masked type of t(8;21)(q22;q22) in a patient with acute myeloid leukemia.
The translocation t(8;21)(q22;q22) is found in 40% of cases of acute myeloid leukemia (AML) designated as the subtype M2 in the French-American-British (FAB) classification. The 8;21 translocation is clinically of interest because patients with this subtype have a good prognosis. We describe a masked type of the translocation, t(8;12;21)(q22.1;q24.1;q22.1). The translocation was first interpreted as t(8;12)(q22;q24) based on cytogenetics, but was reevaluated as a result of Southern blot and fluorescence in situ hybridization (FISH) analyses.
Saitoh
K
K
Third Department of Internal Medicine, Akita University School of Medicine, Japan.
Miura
I
I
Ohshima
A
A
Takahashi
N
N
Kume
M
M
Utsumi
S
S
Kobayashi
Y
Y
Hashimoto
K
K
Hatano
Y
Y
Nimura
T
T
Saito
M
M
Enomoto
K
K
Ohhira
M
M
Shimizu
K
K
Ohki
M
M
Miura
A B
AB
D000208:Acute Disease; D002869:Chromosome Aberrations / Q000235:genetics*; D002871:Chromosome Banding; D025063:Chromosome Disorders; D002881:Chromosomes, Human, Pair 12; D002891:Chromosomes, Human, Pair 21; D002898:Chromosomes, Human, Pair 8; D050676:Core Binding Factor Alpha 2 Subunit; D004268:DNA-Binding Proteins; D006801:Humans; D017404:In Situ Hybridization, Fluorescence; D007951:Leukemia, Myeloid / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D011518:Proto-Oncogene Proteins; D015183:Restriction Mapping; D014157:Transcription Factors / Q000235:genetics; D014178:Translocation, Genetic
D050676:Core Binding Factor Alpha 2 Subunit; D004268:DNA-Binding Proteins; D011518:Proto-Oncogene Proteins; C493728:RUNX1 protein, human; D014157:Transcription Factors