Use of FISH technique in the diagnosis of chromosomal syndromes.

Abstract excerpt

Major chromosome abnormalities are present in 0.65% of all neonates. Fluorescent in situ hybridization (FISH) is useful in diagnosing microdeletion syndromes that would otherwise be difficult to diagnose using standard cytogenetics. In this study, we used FISH analysis in the laboratory diagnosis of 4 patients with Prader-Willi Syndrome [del(15)(q11.2q12)], 4 patients with DiGeorge syndrome [del(22)(q11.2q11.23)]...

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