Jejunal volvulus within an inguinal hernia sac like as an extremely rare cause of acute mechanical gastrointestinal obstruction in adults: First literature report

INTRODUCTION AND IMPORTANCE: Small bowel volvulus (SBV) represents a rare and life-threatening cause of gastrointestinal obstruction among adults. SBV can be classified as primary and secondary subtypes. Preoperative diagnosis of SBV is a challenge because of the absence of pathognomonic clinical, radiographic and laboratory findings. Surgery represents the correct treatment of SBV. CASE PRESENTATION: A 69-year-old Caucasian male presented to the Emergency Department with a two-day history of abdominal pain, inability to pass gas or stool, nausea, vomiting. Physical examination revealed abdominal distension, generalized abdominal pain without guarding or rebound tenderness, a partially reducible and painless right inguinal hernia. Laboratory tests reported neutrophilic leukocytosis. Abdominal computed tomography revealed massive gastroduodenal dilatation with pneumoperitoneum and small bowel loops in the right inguinal sac. The patient underwent exploratory laparotomy: a jejunal volvulus (JV) located within the right inguinal hernia sac, causing gastrointestinal obstruction, was devolvulated and a right prosthetic inguinal hernia repair was also performed. The patient was discharged on the 10th postoperative day. CLINICAL DISCUSSION: Secondary SBV is due to any congenital or acquired lesions and rarely occurs among adults in Western countries. This is the first literature report of a JV located within an inguinal hernia sac causing gastrointestinal obstruction. CONCLUSION: Secondary JV represents an extremely rare abdominal emergency necessitating early diagnosis to prevent the development of intestinal ischemia, bowel necrosis and peritonitis. Diagnosis of JV needs a high index of suspicion and may be facilitated by imaging, often it is made intraoperatively. Surgery represents the appropriate treatment of JV.