Hypertrophic pachymeningitis (HP) is a chronic, progressive diffuse inflammatory condition that leads to thickening of the dura mater and can be idiopathic or associated with sarcoidosis among other disorders. In this case report, we present a rare case of cervical spine HP in a 29-year-old woman in the post-partum period, who had a history of pituitary adenoma and juvenile rheumatoid arthritis. Magnetic resonance imaging (MRI) of the spine revealed a soft tissue mass and moderate cord compression. The patient underwent C3-C7 laminectomy. Pathological analysis of the cervical epidural mass demonstrated a reactive inflammatory cell process. Recurrence of symptoms and worsening of pachymeningitis on imaging studies warranted further work-up which revealed mediastinal/hilar lymphadenopathy. Transbronchial biopsy revealed non-caseating granulomatous disease consistent with sarcoidosis. The patient was started on oral steroids and eventually methotrexate with significant clinical and radiographic improvement. Follow-up imaging studies showed minimal dural thickening in the thoracic spine and eventually complete resolution. HP should be considered in a patient with spinal cord compression, myelopathy, and radicular pain of unclear etiology, and sarcoidosis should be considered in idiopathic cases.
Keywords: Hypertrophic pachymeningitis; case report; cervical spine; myelopathy; sarcoidosis; spinal cord compression.