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• W2066014762 abstract "Objective Classification of severe hypospadias employing a broad array of diagnostic tools. Standardization of a diagnostic approach to children with hypospadias. Identification of patients at risk of having malignancies and endocrine problems. Design Retrospective analysis of patients in a single-center study. Subjects Thirty-three patients with severe (scrotal or penoscrotal) hypospadias, aged 1 to 18 years. Methods Clinical assessment, ultrasonography, karyotyping, endocrine evaluation including adrenal steroid concentrations, sex hormone-binding globulin test for androgen sensitivity, human chorionic gonadotropin stimulation with determination of testosterone and dihydrotestosterone concentrations to exclude 5α-reductase deficiency, and molecular genetic analysis of the androgen receptor gene and the 5α-reductase gene. Results In 12 patients the cause was clarified. Diagnoses included Drash syndrome with Wilms tumor in infancy (3 patients), partial androgen msensitivity resulting from androgen receptor mutations (2), true hermaphroditism (2), chromosomal aberration (1), deficiency of antimüllerian hormone (1), gonadal dysgenesis (1), partial 5α-reductase deficiency caused by a novel point mutation (1), and XX-male syndrome (1). Twelve patients had associated findings such as cardiac malformations (3 patients), rectal atresia (1), dilation of urinary tract (2), cystinuria (1), and others. Conclusions Patients with severe hypospadias should be submitted to a standardized set of diagnostic procedures in infancy. A stepwise diagnostic study avoids unnecessary, invasive, and expensive testing. A high proportion of classified causes can be expected. Patients at risk of having malignancies or hormonal disorders must remain under close surveillance. Classification of severe hypospadias employing a broad array of diagnostic tools. Standardization of a diagnostic approach to children with hypospadias. Identification of patients at risk of having malignancies and endocrine problems. Retrospective analysis of patients in a single-center study. Thirty-three patients with severe (scrotal or penoscrotal) hypospadias, aged 1 to 18 years. Clinical assessment, ultrasonography, karyotyping, endocrine evaluation including adrenal steroid concentrations, sex hormone-binding globulin test for androgen sensitivity, human chorionic gonadotropin stimulation with determination of testosterone and dihydrotestosterone concentrations to exclude 5α-reductase deficiency, and molecular genetic analysis of the androgen receptor gene and the 5α-reductase gene. In 12 patients the cause was clarified. Diagnoses included Drash syndrome with Wilms tumor in infancy (3 patients), partial androgen msensitivity resulting from androgen receptor mutations (2), true hermaphroditism (2), chromosomal aberration (1), deficiency of antimüllerian hormone (1), gonadal dysgenesis (1), partial 5α-reductase deficiency caused by a novel point mutation (1), and XX-male syndrome (1). Twelve patients had associated findings such as cardiac malformations (3 patients), rectal atresia (1), dilation of urinary tract (2), cystinuria (1), and others. Patients with severe hypospadias should be submitted to a standardized set of diagnostic procedures in infancy. A stepwise diagnostic study avoids unnecessary, invasive, and expensive testing. A high proportion of classified causes can be expected. Patients at risk of having malignancies or hormonal disorders must remain under close surveillance." @default.
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• W2066014762 date "1997-09-01" @default.
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• W2066014762 title "Etiologic classification of severe hypospadias: Implications for prognosis and management" @default.
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• W2066014762 doi "https://doi.org/10.1016/s0022-3476(97)80063-7" @default.
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