Uncommon causes of scrotal and inguinal swelling in children: sonographic appearance.

Sonography has proven to be a useful diagnostic tool in the evaluation of scrotal abnormalities. Three uncommon, interesting abnormalities--epididymoorchitis as the presenting manifestation of Hemophilus influenzae sepsis, torsion of undescended testis, and abdominoscrotal hydrocele--are presented. All had swelling of both the scrotum and the inguinal area. Sonography played a significant role in the evaluation and management of these patients.