Isochromosome 18q with karyotype 46, XX, i(18q). Cytogenetics and pathology
β Scribed by Ursula Froster-Iskenius; Wiltrud Coerdt; Helga Rehder; E. Schwinger
- Book ID
- 119839638
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 393 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0009-9163
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We report on a newborn girl with holoprosencephaly, microcephaly, absent right radius, and other anomalies with an 46,XX,i(lSq) chromosome constitution. This is the first report of an i(18q) in syndromal alobar holoprosencephaly.
A case of false-negative discrepancy between results of chorionic villi (direct preparation) and those of fetal tissue with an isochromosome 18q [i( 18q)l in amniotic cells and fetal blood is reported. Fluorescence in situ hybridization (FISH) confirmed this uncommon chromosomal rearrangement. The f