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    Did you mean Non-Classical Adrenal Hyperplasia?
    Glossary Non-Classical Adrenal Hyperplasia

    partial enzyme deficiency causing excess androgen production

    Non-Classical Adrenal Hyperplasia (NCAH) is a milder form of congenital adrenal hyperplasia that typically presents later in life, often during adolescence or adulthood. It is caused by a partial deficiency in the enzyme 21-hydroxylase, leading to an overproduction of androgens (male hormones). Symptoms can include irregular menstrual cycles, excessive hair growth (hirsutism), and acne in females, while males may experience early signs of puberty.

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    1. Management of the Female With Non-classical Congenital Adrenal Hyperplasia (NCCAH): A Patient-Oriented Approach Frontiers in Endocrinology · 2019 · 30 citations
    2. Endocrinology and auxology of sibships with non-classical congenital adrenal hyperplasia. Archives of Disease in Childhood · 1996 · 13 citations
    3. A case of androgen-secreting adrenal carcinoma with non-classical congenital adrenal hyperplasia Indian Journal of Endocrinology and Metabolism · 2013 · 11 citations
    4. Novel Systematics of Nomenclature and Classification of Female Functional Androgenization (Including Polycystic Ovary Syndrome and Non-Classic Congenital Adrenal Hyperplasia) Journal für Kardiologie (Krause & Pachernegg GmbH) · 2010 · 8 citations
    5. Plasma levels of C19 steroid glucuronides in pre-menopausal women with non-classical congenital adrenal hyperplasia 1992 · 7 citations
    6. Non-classical congenital adrenal hyperplasia: current insights into clinical implications, diagnosis and treatment Endocrine · 2025 · 5 citations
    7. Challenges in treatment of patients with non-classic congenital adrenal hyperplasia Frontiers in Endocrinology · 2022 · 4 citations
    8. Urinary 5-ene-steroid excretion in non-classical congenital adrenal hyperplasia due to 3β-hydroxysteroid dehydrogenase deficiency (NC-3BHSD) Journal of Steroid Biochemistry · 1990 · 3 citations
    9. Genetic analysis does not confirm non-classical congenital adrenal hyperplasia in more than a third of the women followed with this diagnosis Hormones · 2014 · 1 citations
    10. EP1729 - LBA_ECE_1452 - When PCOS is not PCOS: a diagnostic pitfall of non-classical congenital adrenal hyperplasia European Journal of Endocrinology · 2026
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