Case of the Week

Section Editors: Matylda Machnowska1 and Anvita Pauranik2
1University of Toronto, Toronto, Ontario, Canada
2BC Children's Hospital, University of British Columbia, Vancouver, British Columbia, Canada

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October 29, 2012

A 3 1/2-year-old patient with rapidly progressive flaccid weakness in upper extremities, along with intense pain in the upper girdles at onset.

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