[Atypical cat eye syndrome. Fluorescence in situ hybridization of metaphase chromosomes].
In 1983, a chromosome analysis was carried out in a newborn preterm infant with minor anomalies (preauricular skin tag, maldescensus testis). All analysed metaphases showed a small extra chromosome, which was symmetric, dicentric and bi-satellited. In spite of in depth analysis, its origin remained obscure. Recent re-evaluation using fluorescence in situ hybridization (FISH) led to the diagnosis of a dicentric chromosome 22. The FISH technique is an important new tool in chromosome diagnostics. The phenotype of this infant only vaguely resembles the cat eye syndrome. The syndrome should be diagnosed clinically and not only based on the results of chromosome analysis.
Institut für Humangenetik, Medizinische Universität, Lübeck.
O
O
Bartsch
F
F
Aksu
A
A
Fenner
E
E
Schwinger
D000015:Abnormalities, Multiple / Q000175:diagnosis / Q000235:genetics*; D001006:Anus, Imperforate / Q000175:diagnosis / Q000235:genetics*; D002675:Child, Preschool; D002869:Chromosome Aberrations / Q000175:diagnosis / Q000235:genetics*; D025063:Chromosome Disorders; D002874:Chromosome Mapping; D002892:Chromosomes, Human, Pair 22; D003103:Coloboma / Q000175:diagnosis / Q000235:genetics*; D003456:Cryptorchidism / Q000175:diagnosis / Q000235:genetics*; D003937:Diagnosis, Differential; D006801:Humans; D017404:In Situ Hybridization, Fluorescence; D007498:Iris / Q000002:abnormalities*; D008297:Male; D008677:Metaphase / Q000235:genetics*; D013577:Syndrome
Atypisches Katzenaugen-Syndrom. Fluoreszenz-in-situ-Hybridisierung von Metaphasechromosomen.