Background: Chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids (CLIPPERS) is an inflammatory disorder involving brainstem, pons in particular, characterized by a predominant T-cell pathology and responsiveness to glucocorticosteroids. We describe a difficult 6 year course of this rare syndrome in a 10-year-old girl.
Case Report: Our patient presented with diplopia, spastic paraparesis, and unsteady gait. MRI showed characteristic punctate hyper-intensities with enhancement in the brain stem, cerebellar peduncles, and optic chiasm and diffuse nodular enhancement throughout the cervical and thoracic spinal cord. Brain biopsy revealed perivascular inflammatory lesions compatible with CLIPPERS. Pulse intravenous methylprednisolone followed by oral prednisolone resulted in significant clinical improvement. She had multiple clinical relapses associated with new brain and/or spinal cord lesions despite sequential maintenance methotrexate and rituximab with low dose steroids. Each relapse responded to pulse steroids.
Conclusion: Her overall clinical course was progressive but responsive to pulse steroids. Long-term treatment remains challenging.
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