Ludlow's esophageal diverticulum: a preternatural bag.

In 1764 Dr. Abraham Ludlow communicated to the Society of Physicians the first anatomic and pathophysiological description of an esophageal diverticulum. That report adeptly detailed this esophageal malady and exemplified the perceptive scientific insight spawned by the hunterian investigative spirit of the mid-eighteenth century.