The prognosis of patients with progressive multifocal leukoencephalopathy is poor, with few patients showing remission or surviving. We describe a 37-year-old man who developed progressive multifocal leukoencephalopathy in association with sarcoidosis. Despite treatment with cytarabine and acyclovir, he continued to deteriorate. Shortly following the addition of interferon alfa, he made a dramatic improvement, regaining full functional independence. The use of interferon alfa in addition to cytarabine in such patients offers a new therapeutic approach worthy of further trial.

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The prevalence of CC is 29% for patients with a short bowel receiving PN following a mesenteric infarction. CC resolves in 53% after continuity is restored, and this is most likely due to stopping or reducing the PN.

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