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• Vol.54 No.7
• CLINICA NEUROL, 54: 581−584, 2014
• Vol.54 No.7 contents

Brief Clinical Note

Chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids (CLIPPERS) associated with swelling in the brainstem: a case report

Hiroki Tani, M.D.¹⁾, Hideto Nakajima, M.D.¹⁾, Kazushi Yamane, M.D.¹⁾, Hiroyuki Ohnishi, M.D.²⁾, Fumiharu Kimura, M.D.¹⁾ and Toshiaki Hanafusa, M.D.¹⁾

¹⁾Department of Internal Medicine I, Osaka Medical College
²⁾Department of Neurosurgery, Osaka Medical College

Chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids (CLIPPERS) is a rare central nervous system inflammatory disease characterized by the punctate gadolinium enhancement peppering the pons and the cerebellar peduncles as neuroimaging. We report the case of a 66-year-old woman who presented with CLIPPERS associated with swelling in the brainstem. She was hospitalized because of gait ataxia and consciousness disturbance. MRI of the brain showed FLAIR hyperintense lesions in the pons, cerebellar peduncles, cerebellum and the subcortical white matter lesion in the right occipital lobe with significant swelling in the brainstem. Diffusion-weighted MRI did not show an abnormal signal, indicating vasogenic edema. Post-contrast T₁-weighted MRI showed enhanced area in the right occipital lobe and panctate gadolinium enhancement peppering brainstem. Treatment with steroids led to rapid improvement. However, she showed exacerbation of clinical and radiological findings during the tapering schedule of steroid. The biopsy from the occipital lobe revealed intense perivascular and parenchymal lymphocytic infiltrates composed of primarily T cells, B cells and macrophages. The patient was diagnosed with CLIPPERS, and treatment with increased dose of corticosteroid induced a clinical improvement. Previous reports well described a characteristic MRI finding of punctate enhancement peppering the pons. In addition, the pons and cerebellar peduncles swelling can occur in this disorder.
Full Text of this Article in Japanese PDF (7522K)

(CLINICA NEUROL, 54: 581−584, 2014)
key words: CLIPPERS (chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids), brainstem, pons edema, vasogenic edema, MRI

(Received: 31-Aug-13)