(¤ 1781, † 1840), French dermatologist. Laurent-Théodore Biett (1781-1840) was born in Schanf, Switzerland. As a child, he moved with his family to France and was educated in Paris. He entered the service of Jean Louis Alibert at the Hôpital Saint-Louis and became his deputy. When Alibert was appointed the king's personal physician, Biett went to London and, like Rayer, became a follower of Willan. His students included Pierre Louis Alphée Cazenave (1795-1877) and Henri Édouard Schedel (1804-1856), who published a paper in 1828 that was a compilation of Biett's lectures and observations (1). The term érythème centrifuge was first mentioned in the 1838 edition of their writings. The term érythème centrifuge was later renamed lupus érythèmateux by Cazenave in 1850, and the first case was presented in 1851.
The syphilitic disease symptom "Biett'stcollarete" was named after Laurent-Théodore Biett.