Down Syndrome Downs syndrome is a chromosomal abnormality and it is the number one cause of mental deficit of genetic origin. Its screening and management have evolved a lot. What tests are currently carried out on pregnant women? When is an amniocentesis done? Causes, examinations, symptoms, treatment… This is a special case of aneuploidy. Normally, … Continue reading Down syndrome (Trisomy 21), Trisomy 18 (Edwards syndrome), Trisomy 13 (Patau syndrome), Trisomy 9, Trisomy 8 (Warkany syndrome 2)