Spigelian Hernia

• Spontaneous lateral ventral hernia below the umbilicus and lateral to the rectus muscle, at junction of vertical semilunar line and horizontal semicircular line
• 90% located 0 - 6 cm above anterior superior iliac spine (Spigelian belt of Spagel)
• Named for Adrian vander Spieghel: Flemish anatomist, (1578 - 1625)
• Characteristics:
      - median age = 50 years
      - more common in males than females
      - more common on right side than left side
• Rx: facial closure
  
  
  
  Plain Abdominal x-ray showing intestinal obstruction in a patient with a Spigelian Hernia
  
  
  
  CAT Scan of abdomen demonstrating an incarcerated Left Spigelian Hernia. Note air above fascia on patient's left.