Role of imaging in infants with ambiguous genitalia
Evaluation is indicated when the testes cannot be palpated and when there is severe hypospadias, incomplete scrotal fusion, fused labia, a micropenis, or clitoral enlargement. These conditions can be classified as true hermaphroditism, female pseudohermaphroditism, male pseudohermaphroditism, and gonadal dysgenesis, depending on further clinical, laboratory, and surgical investigations. US is the simplest method of identifying the internal anatomy by detecting the presence or absence of a uterus and gonads. US is usually combined with a retrograde genitogram performed under fluoroscopy that defines further the relationship of the urogenital sinus to the urethra and vagina
