A 77-year-old left-hand-dominant pianist presents with a loss of dexterity and limited extension of the fingers of his left hand. He mentions his ability to play the piano has decreased over the past few months. On examination, skin dimpling is seen on the palm of his left hand and he is unable to lay it flat on the table. What condition is thought to protect against this disorder? Learn more about this case and join the conversation on Figure 1.
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