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The simple virilizing form of classical congenital adrenal hyperplasia due to 21-hydroxylase deficiency (classical 21 OHD CAH) is characterized by genital ambiguity and virilization of the external genitalia in females, hypocortisolism and precocious pseudopuberty without salt-wasting.
Biomarker and diagnostic research for classic congenital adrenal hyperplasia due to 21-hydroxylase deficiency, simple virilizing form has been reported in the published literature.
Estimated prevalence: 1-9 in 100,000 (Uncommon).
No clinical trials have been registered for classic congenital adrenal hyperplasia due to 21-hydroxylase deficiency, simple virilizing form.
8 publications have been identified in PubMed for classic congenital adrenal hyperplasia due to 21-hydroxylase deficiency, simple virilizing form. Research spans Review / Meta-Analysis (50%), Diagnostic / Biomarker (25%), and Basic Science / Preclinical (25%).
Concolino P (2025). [PMID: 39911519](https://pubmed.ncbi.nlm.nih.gov/39911519/). *J Endocr Soc*. [Review / Meta-Analysis]
Krysiak R (2025). [PMID: 39240753](https://pubmed.ncbi.nlm.nih.gov/39240753/). *Endocr Rev*. [Review / Meta-Analysis]
Yang M (2025). [PMID: 39836621](https://pubmed.ncbi.nlm.nih.gov/39836621/). *J Clin Endocrinol Metab*. [Review / Meta-Analysis]
Atas N (2025). [PMID: 40552539](https://pubmed.ncbi.nlm.nih.gov/40552539/). *Mol Genet Genomic Med*. [Basic Science / Preclinical]
Odabaşı Güneş S (2025). [PMID: 39713855](https://pubmed.ncbi.nlm.nih.gov/39713855/). *J Clin Res Pediatr Endocrinol*. [Review / Meta-Analysis]
Data assembled from 3 of 12 sources · Last updated Sep 20, 2026, 7:54 AM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Common questions about classic congenital adrenal hyperplasia due to 21-hydroxylase deficiency, simple virilizing form
Suwanlikit Y (2025). [PMID: 39856693](https://pubmed.ncbi.nlm.nih.gov/39856693/). *BMC Med Genomics*. [Diagnostic / Biomarker]
Sarafoglou K (2025). [PMID: 38701341](https://pubmed.ncbi.nlm.nih.gov/38701341/). *J Clin Endocrinol Metab*. [Basic Science / Preclinical]
David J (2025). [PMID: 39357842](https://pubmed.ncbi.nlm.nih.gov/39357842/). *Exp Clin Endocrinol Diabetes*. [Diagnostic / Biomarker]