The role of sonography in pediatric gynecology.

Sonography has a major role in the evaluation of children with gynecologic disorders. The size, consistency, and origin of pelvic masses and the status of the internal genitalia can be evaluated. Sonography is useful in evaluation of children with precocious puberty because it can demonstrate adult-size ovaries in true precocious puberty, which distinguishes this from premature thelarche and adrenarche. Specific causes of precocious sexual development such as adrenal and ovarian tumors and cysts also can be diagnosed.