Approaching fertility in congenital adrenal hyperplasia: exploring P30L mutation-induced 21-hydroxylase deficiency with a presentation between non-classical and simple virilizing phenotypes. A case report.

Congenital adrenal hyperplasia (CAH) is determined in the vast majority of cases by mutations in the gene, which cause the deficiency of the 21 hydroxylase enzyme, which is involved in the synthesis of cortisol and aldosterone. Generally, CAH phenotype and disease severity can be predicted with the genotypes and is related to the residual activity of 21 hydroxylase enzyme. It is divided into classical CAH with salt wasting and simple virilizing forms and non-classical or late-onset CAH forms, respectively.