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

•Jejunal volvulus (JV) represents a rare cause of gastrointestinal obstruction among adults.•Diagnosis is a challenge because of the absence of specific clinical presentation, pathognomonic radiographic and laboratory findings.•Abdominal contrast-enhanced computed tomography (CECT) remains the most relevant imaging modality for diagnosis.•Early diagnosis and early surgical intervention are the keys for the successful management of JV.