Armand Trousseau

French internist whose contributions to medicine include Trousseau sign of malignancy, Trousseau sign of latent tetany, Trousseau–Lallemand bodies (an archaic synonym for Bence Jones cylinders), and the truism, "use new drugs quickly, while they still work."

Trousseau was instrumental in creating new modes of treatment of croup, emphysema, pleurisy, goiter, and malaria. He received the prize of the French Academy of Medicine for his classic essay on laryngology which originally appeared in 1837. He was the first in France to perform a tracheotomy, and he wrote a monograph on this as well as intubation in 1851. His textbooks on clinical medicine and therapeutics were both extremely popular and translated into English. Trousseau coined the terms aphasia and forme fruste and popularized eponyms in disease description such as Addison's disease and Hodgkin's lymphoma.

In 1833, Trousseau invented the Trousseau Tracheal Dilator, a blunt-nosed forcep designed to allow easier access to a tracheostomy stoma.

He died on 23 June 1867, aged 65, in Paris.