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    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. Ashwagandha root in the treatment of non-classical adrenal hyperplasia BMJ case reports · 2012 · 5 citations
    2. 7696 Ovarian Steroid Cell Tumor Presenting As Non-classical Adrenal Hyperplasia Journal of the Endocrine Society · 2024
    3. 7696 Ovarian Steroid Cell Tumor Presenting as Non-classical Adrenal Hyperplasia Journal of the Endocrine Society · 2024
    4. A Prospective Study of the Prevalence of Nonclassical Congenital Adrenal Hyperplasia among Women Presenting with Hyperandrogenic Symptoms and Signs The Journal of Clinical Endocrinology and Metabolism · 2007 · 150 citations
    5. CYP21A2 Genotypes do not Predict the Severity of Hyperandrogenic Manifestations in the Nonclassical Form of Congenital Adrenal Hyperplasia Hormone and Metabolic Research · 2013 · 14 citations
    6. Nonclassical Congenital Adrenal Hyperplasia and Pregnancy Case reports in endocrinology · 2015 · 1 citations
    7. 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
    8. Management of the Female With Non-classical Congenital Adrenal Hyperplasia (NCCAH): A Patient-Oriented Approach Frontiers in Endocrinology · 2019 · 30 citations
    9. Endocrinology and auxology of sibships with non-classical congenital adrenal hyperplasia. Archives of Disease in Childhood · 1996 · 13 citations
    10. A case of androgen-secreting adrenal carcinoma with non-classical congenital adrenal hyperplasia Indian Journal of Endocrinology and Metabolism · 2013 · 11 citations
    11. 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
    12. Plasma levels of C19 steroid glucuronides in pre-menopausal women with non-classical congenital adrenal hyperplasia 1992 · 7 citations
    13. Non-classical congenital adrenal hyperplasia: current insights into clinical implications, diagnosis and treatment Endocrine · 2025 · 5 citations
    14. Challenges in treatment of patients with non-classic congenital adrenal hyperplasia Frontiers in Endocrinology · 2022 · 4 citations
    15. 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
    16. EP1729 - LBA_ECE_1452 - When PCOS is not PCOS: a diagnostic pitfall of non-classical congenital adrenal hyperplasia European Journal of Endocrinology · 2026
    17. Non-classical Congenital Adrenal Hyperplasia Presenting With Severe Androgenic Alopecia: A Case Report Cureus · 2025
    18. Roux-en-Y gastric bypass in the treatment of non-classic congenital adrenal hyperplasia due to 11-hydroxylase deficiency BMJ case reports · 2013 · 5 citations
    19. Unusual presentation with polymenorrhagia and markedly high 17-hydroxy progesterone levels in a lady with Non-Classic Congenital Adrenal Hyperplasia. PubMed · 2015 · 1 citations
    20. 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 Medicine and Pharmacy Reports · 2023
    21. Severe Hirsutism in Non Classic Congenital Adrenal Hyperplasia: A Case Report and Literature Review Open Access Macedonian Journal of Medical Sciences · 2020
    22. Non-classic congenital adrenal hyperplasia due to 21-hydroxylase deficiency revisited: an update with a special focus on adolescent and adult women Human Reproduction Update · 2017 · 117 citations
    23. Non-classic congenital adrenal hyperplasia Steroids · 2013 · 42 citations
    24. The Effect of Simvastatin on Plasma Steroid Hormone Levels in Metformin-Treated Women with Non-Classic Congenital Adrenal Hyperplasia Experimental and Clinical Endocrinology & Diabetes · 2016 · 7 citations
    25. Cardiometabolic risk factors in women with non-classic congenital adrenal hyperplasia Acta Cardiologica · 2019 · 2 citations
    26. Hyperandrogenism in polycystic ovary syndrome and adrenal hyperplasia: finding differences to make a specific diagnosis Archives of Gynecology and Obstetrics · 2025 · 7 citations
    27. Study of Human Leukocyte Antigen ( HLA ) in 13 cases of familial frontal fibrosing alopecia: CYP 21A2 gene p.V281L mutation from congenital adrenal hyperplasia linked to HLA class I haplotype HLA ‐ A*33:01 ; B*14:02; C*08:02 as a genetic marker Australasian Journal of Dermatology · 2019 · 7 citations
    28. Congenital adrenal hyperplasia Dermato-endocrinology · 2009 · 26 citations
    29. Genetic screening of non-classic CAH females with hyperandrogenemia identifies a novel CYP11B1 gene mutation Hormones · 2016
    30. Clinical, Biochemical and Molecular Characteristics of Congenital Adrenal Hyperplasia Due to 21-Hydroxylase Deficiency Journal of Clinical Research in Pediatric Endocrinology · 2024