PRENATAL DIAGNOSIS OF DE NOVO SUPERNUMERARY MARKER CHROMOSOME ORIGINATED FROM CHROMOSOME 16 BY ARRAY-CGH.


Yakut S., Cetin Z., Sanhal C., Karauzum S. B. , Karaman B. , Simsek M.

Genetic counseling (Geneva, Switzerland), vol.26, no.3, pp.299-305, 2015 (Journal Indexed in SCI Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 26 Issue: 3
  • Publication Date: 2015
  • Title of Journal : Genetic counseling (Geneva, Switzerland)
  • Page Numbers: pp.299-305

Abstract

Prenatal diagnosis of de novo supernumerary marker chromosome originated from chromosome 16 by array-CGH: A 33 years-old pregnant woman was referred for amniocentesis at 19 weeks of gestation due to abnormal serum biochemistry. A non-satellited, monocentric marker chromosome was observed with a frequency of 50% in cultured anmiocytes. Parental karyotypes were normal. The marker chromosome was found to be derived from chromosome 16 by FISH and array-CGH analysis. Genetic counseling was given to parents and the family decided to terminate the pregnancy. Dysmorphic findings including; low set ears, exophtalmos depressed nasal bridge, large mouth and lips, posture anomalies at the extremities were detected at autopsy.