Spigelian hernia

Case contributed by Dr Ammar Haouimi

Presentation

Swelling in the right iliac fossa. No history of trauma or surgery.

Patient Data

Age: 30 years
Gender: Male
CT

Herniation of the bowel loops through a large defect of the right abdominal wall at the lateral border of the right rectus abdominis muscle along the semilunar line (Spigelian line) in keeping with Spigelian hernia. The bowel loops within the hernial sac are not distended.

Small simple right renal cysts.

Case Discussion

CT features typical of a Spigelian hernia at the lateral border of the right rectus abdominis muscle. It is considered a rare type of abdominal hernia and accounts for ~1% (range 0.1-2%) of ventral hernias.

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