Pachymeningitis and optic neuritis in rheumatoid arthritis: MRI findings.

Rheumatoid arthritis is a systemic disease in which cerebral and eye involvement is neither common nor fully understood. Although it is rarely the cause of pachymeningitis and optic neuritis, rheumatoid arthritis should always be kept in mind in these two conditions. We present a 52-year-old male with an 8 month history of rheumatoid arthritis who was referred to the neurology department with headache and decreasing vision and was diagnosed as having rheumatoid pachymeningitis and optic neuritis on the basis of MRI findings.