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July 1980

Progressive Supranuclear Palsy and Hyperkalemic Periodic Paralysis

Arch Neurol. 1980;37(7):461-462. doi:10.1001/archneur.1980.00500560091018

• A patient with hyperkalemic periodic paralysis experienced the gradual onset of additional and unexpected neurologic abnormalities in middle age, suggestive of progressive supranuclear palsy. Although the concurrence of these findings may be coincidental, these features may evade recognition in other patients by being misattributed to chronic myopathy or depression.