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Characteristics of Congenital Adrenal Hyperplasia Diagnosed in Adulthood: A Literature Review and Case Series

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JOURNAL OF CLINICAL MEDICINE
卷 12, 期 2, 页码 -

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MDPI
DOI: 10.3390/jcm12020653

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congenital adrenal hyperplasia; 21-hydroxylase deficiency

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Congenital adrenal hyperplasia (CAH) is a group of autosomal recessive disorders characterized by impaired cortisol synthesis. It can be diagnosed at different ages depending on the clinical form. In this case series, eight individuals were diagnosed with CAH between the ages of 18 and 81 years. The clinical presentations, genetic findings, and management of CAH were discussed. The importance of individualized management and long-term screening was emphasized.
Congenital adrenal hyperplasia (CAH) is a group of autosomal recessive disorders characterized by impaired cortisol synthesis. CAH, depending on its clinical form, is usually diagnosed in the neonatal period, later in childhood, in adolescence, or in young adults. Herein, we report a case series of eight individuals in whom CAH was diagnosed between the ages of 18 and 81 years. Methods: We report on clinical presentations, hormonal tests, adrenal/gonadal imaging, and genetic findings. The clinical data of eight people with CAH, including four women (46, XX) and four men (46, XY), were reviewed. A genetic analysis of the cytochrome P450 family 21 subfamily A member 2 (CYP21A2) gene was performed in six patients. A comprehensive literature review was also conducted. Case series: Partial cortisol deficiency was found in all patients. The most frequent genotype was the homozygotic I173N mutation in CYP21A2. Adrenal masses were detected in seven patients, except for the youngest. Most of the patients were of short stature. Hypogonadotropic hypogonadism was detected in two males, and three females presented with primary amenorrhea. Hirsutism was noticeable in three females. All of the patients developed insulin resistance, and half of them were obese. Conclusions: The clinical presentations of different forms of CAH overlapped. Genotype-phenotype correlations were strong but not absolute. The management of CAH should be individualized and based on clinical and laboratory findings. Furthermore, the assessment of the cortisol response to adrenocorticotrophic hormone stimulation should be mandatory in all adults with CAH. Additionally, the regular long-term screening of cardiometabolic status is required in the CAH population.

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