Introduction: Engorgement of the epidural venous plexus (EVP) is a rare cause of nerve root impingement. Dilated epidural veins cause compression of the thecal sac and spinal nerve roots, leading to lumbar radiculopathy.
Patient concerns: Here we describe a case of severe lumbar radiculopathy in a 15-year-old morbidly obese boy.
Diagnosis: Enhanced lumbar magnetic resonance imaging revealed left sided L1-L2 disc protrusion and engorgement of the lumbar EVP, resulting in narrowing of the thecal sac in the entire lumbar spine. There was no evidence of an intra-abdominal mass, thrombosis of the inferior vena cava, or vascular malformation.
Interventions: A caudal epidural block was administered under fluoroscopic guidance. The patient reported a 30% reduction in pain intensity for just 1 day.
Outcomes: The patient has been followed up for 2 years. He continues to take medication, including morphine sulfate 15 mg, gabapentin 300 mg, and oxycodone 20 mg per day. He is on a diet with exercise for weight reduction.
Conclusion: An engorged EVP should be considered in the differential diagnosis of radiculopathy in morbidly obese patients.