“Trotter’s syndrome”; deafness, palatal paralysis, and facial neuralgia, usually due to a nasopharyngeal carcinoma.

Trotter, a surgeon, also contributed to social psychology. In this work he popularized in English the concept, first developed by French sociologist, Gustave Le Bon, of an instinct over-riding the will of the individual in favor of the group. Digital facsimile from the Internet Archive at this link.

In 1924 Wilfred Trotter(1872-1939) performed the first planned operation for intracranial aneurysm diagnosed pre-operatively.