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CLASSIFICATION OF DISORDER OF SEXUAL DEVELOPMENT

• DISORDER OF CHROMOSOMAL SEX------this occurs when the no. or structure of the X , Y chromosome is abnormal. Eg---klinefelter synd 47 XXY , XX male (46XX) , turner synd (gonadal dysgenesis) 45 XO , 46 , XX/45X ; mixed gonadal dysgenesis46 , XY/45X ; true hermaphroditism 46 , XX or 46,XY or mosaics
• DISORDER OF GONADAL SEX-----disorder of gonadal sex result when chromosomal sex is normal but differentiation of the gonads is abnormal. Eg---pure gonadal dysgenesis ; dysgenetic testes ; absent testes synd
• Disorser of phenotypic sex----in these disorders the individuals with normal gonads and normal chromosomal pattern but with abnormal urogenital tract. Eg.---1.female pseudohermaphrodite---congenital adrenal hyperplasia , nonadrenal female pseudohermaphroditism , developmental disorders of mullerian ducts 2..male pseudohermaphrodite------abnormalities in androgen synthesis , abnormalities in androgen action , persistent mullerian duct synd , developpmental defects of male genitalia

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