Chromosome Region 7q11.23 Deletion in Amniotic Fluid or Chorionic Villus Sample by FISH

**Semantic type:** Laboratory Procedure

**Definition:** A fluorescent in situ hybridization-based procedure that detects chromosome region 7q11.23 deletions in an amniotic fluid or chorionic villus specimen.

**Synonyms:** - Chromosome region 7q11.23 deletion in Amniotic fluid or Chorionic villus sample by FISH