title: Malignant schwannoma: report of a case mimicking lumbar disk disease.
abstract: Primary neurogenic retroperitoneal tumors in the adult are rare. This case presentation reviews an unusual history of a patient who presented with pain and neurologic deficits suggesting lumbar disk disease but who was unrelieved by laminectomy and disk removal. Later he was found to have a malignant schwannoma arising from the right L nerve root. Experience such as this reminds physicians that when the result of treatment is not as expected the original diagnosis must be questioned.
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000175:diagnosis* / Q000601:surgery; D007796:Laminectomy; D008297:Male; D009442:Neurilemmoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D013127:Spinal Nerves / Q000601:surgery