The following is an excerpt....
BASICS
Description
- Pseudohermaphrodite is an older expression that referred specifically to conditions in which the phenotypic sex was inconsistent with the gonadal sex.
- Disorders of sexual development (DSDs) the more general preferred term today, which refers to congenital conditions in which development of chromosomal, gonadal, or anatomic sex is atypical.
- Female pseudohermaphrodite (now called 46 XX DSD):
- Karyotype 46XX
- Gonads: Histologically normal ovaries
- External genitalia: Varying degrees of masculinization
- Causes:
- CAH is most common cause in females. Results from block in cortisol synthesis pathway with exogenous virilization
- Other causes: Progestational agents given in the 1st trimester; virilizing tumors such as maternal ovarian/adrenal tumors
- Male pseudohermaphrodite (now called 46 XY DSD):
- Karyotype: 46XY
- Gonads: Histologically normal testes
- External genitalia: Incomplete ...
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