Pierre D. and the First Photographs of Parkinson's Disease

When William Gowers wrote his Manual of the Diseases of the Nervous System in the 1880s, he illustrated the movement disorder Parkinson's disease with an etching of a man displaying the characteristic posture of Parkinson's disease, an etching that was noted as deriving from St. Leger (Fig. 1A).1 This image has endured since Gowers’ day as a striking portrayal of Parkinson's disease and reused and adapted in academic publications, lectures, and...