Thoracic spinal cord compression indicating Wegener's granulomatosis in a patient with a previous presumptive diagnosis of microscopic polyangiitis.

Neurological signs are observed in 20-50% of cases of Wegener's granulomatosis consisting of peripheral and cranial neuropathy, and central nervous system involvement during the disease and rarely as initial symptom. We report here a case of thoracic spinal cord compression due to dural masses in a patient with a previous presumptive diagnosis of microscopic polyangiitis indicating Wegener's granulomatosis on histological examination. No other site of involvement was found. Slight clinical improvement was observed under immunosuppressive treatment probably because of spinal cord vessels lesions.