Obstructed Left Paraduodenal Hernia with Spontaneous Reduction Demonstrated on Computed Tomography: A Case Report

Paraduodenal hernias (PDH) are the most frequently occurring internal hernia, caused due to nonfusion between inferior mesentery and parietal peritoneum. The herniation of the bowel through the fossa of Landzert results in the left paraduodenal hernia which constitutes 75% of PDH. A case of a 34-year-old male with obstructed left PDH and a spontaneous reduction is demonstrated on Computed Tomography (CT). The patient had a cluster of jejunal loops forming a sac-like mass in the left anterior pararenal space, with surrounding mass effect with twisting and stretching of the mesenteric vessels at the hernia orifice, which showed a spontaneous reduction on subsequent contrast-enhanced and delayed CT studies. Despite the imaging evidence of spontaneous reduction of left PDH in our case, surgery remains the mainstay in terms of management for left paraduodenal hernia.