Posterior Nutcracker Syndrome Associated with Azygos Continuation of the Inferior Vena Cava in a Child: Case Report

Posterior nutcracker syndrome (PNCS) is a rare vascular compression disorder caused by compression of the left renal vein between the aorta and vertebral column. It is infrequent in pediatric populations and can present with nonspecific symptoms such as chronic abdominal pain. The association with azygos continuation of the inferior vena cava (IVC) is exceedingly rare. We report a case of a 10-year-old boy presenting with abdominal pain, diagnosed with posterior nutcracker syndrome associated with azygos continuation of the IVC. This diagnosis was established through CT imaging and conservative management led to a favorable clinical outcome.