Trisomy 13, also known as Patau Syndrome, occurs when there is an extra copy of chromosome 13.
Trisomy 18, also known as Edward Syndrome, occurs when there is an extra copy of chromosome 18. Trisomy 18 can [...]
Oculo-auriculo-vertebral spectrum (OAVS) refers to three rare disorders that many clinicians believe to be intimately related to one another and [...]
Chromosome 18 includes 18p-, 18q-, Ring 18, Tetrasomy 18p, and Trisomy 18. 18p can cause heart defects and holoprosencephaly, a [...]