congenital adrenal hyperplasia due to cytochrome P450 oxidoreductase deficiency
Findings
No curated finding names congenital adrenal hyperplasia due to cytochrome P450 oxidoreductase deficiency yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Congenital adrenal hyperplasia due to cytochrome P450 oxidoreductase deficiency is a unique form of congenital adrenal hyperplasia (CAH) characterized by glucocorticoid deficiency, severe sexual ambiguity in both sexes and skeletal (especially craniofacial) malformations.
Definition from the Mondo Disease Ontology (MONDO:0013310), read 2026-09-29. CC BY 4.0.
- Inheritance
- Autosomal recessive inheritance
- Onset and course
- Stillbirth
HPO, annotations 2026-09-02
Features
106 features
What the disease is reported to present with, and how often among people who have it — never how often a feature means the disease. HPO, annotations 2026-09-02.
- Abnormal response to ACTH stimulation testHPOHP:0031074
- Very frequent (80% to 99% of cases)
- Abnormality of the skeletal systemHPOHP:0000924
- Very frequent (80% to 99% of cases)
- Abnormal circulating pregnenolone concentrationHPOHP:0031187
- Frequent (30% to 79% of cases)
- Abnormal external genitalia morphologyHPOHP:0000811
- Frequent (30% to 79% of cases)
- Abnormal female external genitalia morphologyHPOHP:0000055
- Frequent (30% to 79% of cases)
Genes
1 gene
Germline variants in the gene encoding each protein, as classified by GenCC submitters, each in their own words. Limited, disputed and refuted submissions are listed too.
- PORHGNC:9208
- Strong · Labcorp Genetics (formerly Invitae) · Autosomal recessive · 2020
- Strong · PanelApp Australia · Autosomal recessive · 2025
- Supportive · Orphanet · Autosomal recessive · 2021
Where it sits
Other names
3 names
Resolves to: congenital adrenal hyperplasia due to cytochrome P450 oxidoreductase deficiency
- Also called
- congenital adrenal hyperplasia due to cytochrome POR deficiencyPOR deficiencyPORD