Myelopathy Due to Hypertrophic Pachymeningitis Associated With ANCA Vasculitis: A 10-Year Follow-up Case Report.

This case report describes a rare presentation of antineutrophil cytoplasmic antibodies-associated hypertrophic pachymeningitis in a 49-year-old woman with cranial and spinal lesions. Initial management comprised decompressive laminectomy and steroid therapy, with the subsequent addition of immunosuppressant therapy following symptom recurrence. After a ten-year follow-up, significant symptom improvement and return of motor function were noted. This case emphasizes the crucial role of early diagnosis, a multidisciplinary approach, and combined medical therapy in managing this rare condition.