Gastric volvulus following left pneumonectomy in an adolescent patient

•Gastric volvulus, rare in pediatric patients, is a possible sequela of pneumonectomy.•This diagnosis must be considered in patients with chest pain and prior pneumonectomy.•Diagnosis of gastric volvulus may require CT; prompt surgical correction is essential.

Gastric volvulus is a rare post-pneumonectomy complication. Although it has been described previously, published cases are limited to an older patient population. We report the youngest case of postpneumonectomy gastric volvulus to date, occurring in an 18-year-old male with a history of inflammatory myofibroblastic pseudotumor who underwent left intrapericardial pneumonectomy, and presented 13 years later with chronic intermittent mesenteroaxial gastric volvulus. While postpneumonectomy gastric volvulus is a rare occurrence, it should remain in the differential diagnosis in postoperative thoracic surgical patients presenting with chest pain.