Purpose or Case Report: Girls with congenital adrenal hyperplasia can present with a wide variety of urogenital malformations. Understanding these malformations and the anatomical relations between the pelvic structures is paramount for surgical planning. Imaging of these patients can be done by various methods such as genitography, magnetic resonance or endoscopy.
More recently some authors have begun to propose perineal ultrasound as an alternative for imaging of these patients for pre-operative planning.
In this educational poster we will use perineal ultrasound images and detailed illustrations to:
1) Review the spectrum of genital and lower urinary tract malformations related to congenital adrenal hyperplasia in girls.
2) Explain the transperineal ultrasound technique and normal anatomy.
3) Explain the transperineal ultrasound findings and utility in girls with congenital adrenal hyperplasia.

Contents:
Normal anatomy
Pathologic changes in congenital adrenal hyperplasia
Review of what is relevant to the referring surgeon.
Ultrasound technique
Ultrasound findings in normal patients
Ultrasound findings in congenital adrenal hyperplasia.
Methods & Materials:
Results:
Conclusions: