[Detection of common chromosome abnormalities in myelodysplastic syndrome with a panel fluorescence in situ hybridization].
OBJECTIVE
To evaluate the value of a panel fluorescence in situ hybridization (FISH) in the detection of common chromosome abnormalities in myelodysplastic syndrome (MDS).


METHODS
Twenty cases of MDS patients, whose karyotypes were unknown by the FISH examiner beforehand, were analyzed with a panel FISH using YAC248F5 (5q31), YAC938G5 (7q32), CEP8 and YAC 912C3 (20q12) probes to detect the frequently occurring chromosome abnormalities (-5/5q, -/7q-, +8, 20q-) in MDS. Then the results were compared to those of conventional cytogenetics (CC).


RESULTS
Among 20 cases, 13 cases were found to carry common chromosome abnormalities by panel FISH (trisomy 8, five cases; -5/5q-, one case; 20q-, five cases; 5q- accompanying 20q-, one case; complex abnormalities, one case). However, on CC examination, only five cases were found to have common chromosomal abnormalities (20q-, four cases; 5q- accompanying 20q-, one case). In addition, trisomy 21, marker chromosome and complex abnormalities comprising -5, -7 and marker chromosomes were seen in one case each, the rest were normal.


CONCLUSIONS
Panel FISH is a useful tool of molecular cytogenetics in the detection of common chromosome abnormalities in MDS.
Shen
Yongmei
Y
First Affiliated Hospital of Soochow University, Jiangsu Institue of Hematology, Suzhou, Jiangsu, 215006 P. R. China. uujihsmc@public1.sz.js.cn
Xue
Yongquan
Y
Li
Jianyong
J
Pan
Jinlan
J
Wu
Yafang
Y
Chen
Suning
S
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002869:Chromosome Aberrations; D002890:Chromosomes, Human, Pair 20 / Q000235:genetics; D002895:Chromosomes, Human, Pair 5 / Q000235:genetics; D002897:Chromosomes, Human, Pair 7 / Q000235:genetics; D002898:Chromosomes, Human, Pair 8 / Q000235:genetics; D005260:Female; D006801:Humans; D017404:In Situ Hybridization, Fluorescence / Q000379:methods*; D007621:Karyotyping; D008297:Male; D008875:Middle Aged; D009190:Myelodysplastic Syndromes / Q000235:genetics*