Association of abnormalities of chromosome 11 with t(14;18) in diffuse non-Hodgkin's lymphoma.
Cytogenetic studies of non-Hodgkin's lymphomas (NHL) have revealed a nonrandom translocation, t(14;18)(q32;q21), to be strongly correlated with follicular histology. In our recent study of 149 cases of NHL, 68 cases had a t(14;18). Forty-four of these were follicular and 24 diffuse. In the majority of cases (90%) there were additional chromosome abnormalities, which were analyzed to determine whether any were specifically associated with diffuse histology. Chromosome 11 abnormalities occurring together with the t(14;18) were found to be present in 17/68 cases; 14/17 (82%) were diffuse and 3/17 (18%) were follicular NHL. Thus, 14/24 (58%) of all diffuse lymphomas with t(14;18) had an abnormality of chromosome 11 compared to only 3/44 (7%) of follicular lymphomas, suggesting that the addition of an abnormality of chromosome 11 to a t(14;18) karyotype is associated with diffuse histology.
Lukeis
R
R
Department of Cytogenetics, Peter MacCallum Cancer Institute, Melbourne, Australia.
Juneja
S
S
Tan
L
L
Matthews
J
J
Cooper
I
I
Ironside
P
P
Garson
O M
OM
D000328:Adult; D000368:Aged; D002869:Chromosome Aberrations; D002880:Chromosomes, Human, Pair 11; D002883:Chromosomes, Human, Pair 14; D002887:Chromosomes, Human, Pair 18; D005260:Female; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D014178:Translocation, Genetic