Multifocal dural enhancement associated with temporal arteritis

Objective To report the association of temporal arteritis and enhancement o f the dura mater and temporalis muscle. Design and Methods: A single patient with a complaint of headache and diplo pia was studied. Setting Academic medical center. Patients: A 69-year-old man presented with lateral rectus weakness, tempora l artery tenderness, and an erythrocyte sedimentation rate of 65 mm/h. Intervention: Biopsy of temporal artery and dura mater. Main Outcome Measures: Brain magnetic resonance imaging and pathological fi ndings. Results: Magnetic resonance imaging of the brain showed multifocal dural en hancement and enhancement of the temporalis muscles. The temporal artery sh owed a necrotizing vasculitis and the dura showed perivascular inflammatory cells. Conclusion: It is proposed that the temporal arteritis caused the multifoca l dural enhancement and temporalis muscle enhancement on magnetic resonance imaging.