Oblique longitudinal sonogram of the right inguinal region of the male 1 week after birth showing a right patent processus vaginalis from the deep inguinal ring to the scrotum (arrows), epididymis (E) and right testis (RT). Echoes of a section of the root of the penis (P) and left testis (LT) are also seen on this plane. The asterisks indicate small hydroceles on both sides.