Figure 14.
Inguinal hernia. A, Longitudinal grayscale sonogram of the proximal right inguinal canal in a 2-week-old boy with abdominal distention, dysmorphic features, and a nonpalpable right testicle. The image shows a right inguinal hernia (H) that contains bowel extending from the abdominal cavity (A) through the proximal inguinal ring (white arrows) into the inguinal canal. B, Transverse grayscale sonogram of the inguinal canal in the same patient showing echogenic air (white arrows) within bowel loops. Real-time sonography revealed bowel peristalsis, and subsequent color Doppler imaging showed preserved blood flow. Note the adjacent undescended right testis (R). C, Longitudinal grayscale sonogram of the right inguinal canal in the same patient showing an undescended right testicle (surrounded by calipers) located adjacent to herniated bowel (white arrowheads) in this patient with a chromosome 16p interstitial duplication on microarray analysis.