Skip to content
Health Information View
22q11.2 deletion syndrome, rare (NIH)
August 15, 2018
(August 19, 2018)
21 hydroxylase deficiency
3 beta hydroxysteroid dehydrogenase deficiency
The disorder known as 22q11.2 deletion syndrome is caused by the deficiency or deletion of a tiny piece of chromosome 22. This deletion happens near the midsection of a chromosome located at q 11.2.