Left Para-Duodenal Hernia Presenting With Recurrent Abdominal Pain: A Diagnostic Challenge.

Paraduodenal hernias (PDH) are a type of internal hernia that results from errors in midgut rotation and failure of mesenteric fusion. Internal hernias themselves are a rare presentation that accounts for less than 1% of total hernias, and paraduodenal hernias contribute more than half of internal hernias. Left paraduodenal hernias (LPDH) occur more frequently as compared to right paraduodenal hernias. Left paraduodenal hernias happen when the small intestine bulges out in the left paraduodenal space, which is also called the space of Landzert. This can cause vague abdominal pain and signs of intestinal blockage, which makes diagnosis difficult. We present a case of a 28-year-old male with recurrent abdominal pain for 7 years, diagnosed with LPDH via laparotomy after inconclusive imaging studies, such as the whirlpool sign on USG. Intraoperatively, jejunal loops were found in Landzert's fossa, hindering hernia repair and adhesiolysis. Clinicians must maintain a high index of suspicion for PDH when assessing nonspecific abdominal symptoms to ensure timely diagnosis and management, optimising patient outcomes.