Application of FISH 7q in MDS patients without monosomy 7 or 7q deletion by conventional G-banding cytogenetics: does -7/7q- detection by FISH have prognostic value?

Leuk Res. 2013 Apr;37(4):416-21. doi: 10.1016/j.leukres.2012.12.010. Epub 2013 Jan 18.

Abstract

Chromosomal abnormalities are detected in 40-60% of patients with de novo myelodysplastic syndromes (MDS). This study used the FISH technique in 773 patients with de novo MDS without evidence of monosomy 7 (-7) or 7q deletion (7q-) by conventional G-banding cytogenetics (CC) to analyze their prognostic impact by FISH alone. FISH detected -7/7q- in 5.2% of patients. Presence of -7/7q- was associated with shorter overall survival than absence of such aberrations. Our results suggest that FISH 7q could be beneficial in patients with intermediate WHO morphologic risk stratification and no evidence of -7/7q- by CC.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Chromosome Banding*
  • Chromosome Mapping
  • Chromosomes, Human, Pair 7*
  • Humans
  • In Situ Hybridization, Fluorescence / methods*
  • Monosomy*
  • Myelodysplastic Syndromes / genetics*
  • Prognosis