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In 1849, Duchenne (de Boulogne) described "muscular atrophy with fatty transformation,"1 *and a year later Aran, using Duchenne's material, elaborated the description and named the condition progressive muscular atrophy (P.M.A.).2In 1860, Duchenne added his unsurpassed clinical depiction of "progressive muscular paralysis of the tongue, palate and lips," now known as progressive bulbar palsy.3In 1868 Charcot delivered a lecture at the Salpetriere on the association of progressive muscular atrophy
Roland P. Mackay (Fri,) studied this question.
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