Gonadal dysgenesis

Overview
Gonadal dysgenesis generally refers to a condition where gonadal development is abnormal, often only presenting streaks of connective tissue: so-called streak gonads.

Etiology
The condition may be due to:
 * Turner syndrome, and its variations (i.e. mosaicism)
 * XX gonadal dysgenesis, also pure gonadal dysgenesis, 46, XX
 * Swyer syndrome, also pure gonadal dysgenesis, 46, XY
 * Perrault syndrome
 * Mixed gonadal dysgenesis
 * Endocrine disruptors

Presentation
It is one of the causes of intersexuality, because the genitalia are determined to be neither exclusively male nor female.