HX20 Jean Alfred Fournier: a pioneer of venereology and dermatology

Abstract Jean Alfred Fournier (1832–1914) was a pivotal figure in 19th-century medicine, widely regarded as the architect who made venereology an integral part of dermatology. Born in Paris in 1832 to a family of modest means, Fournier was adept at languages from a young age, mastering Greek and Latin and translating key Renaissance medical texts before beginning formal medical training. At just 22, he entered the Hôpital du Midi, a centre dedicated to venereal diseases. Here he trained under Philippe Ricord, the renowned syphilologist, who was credited for discovering that syphilis and gonorrhoea are distinct diseases. While training here, Fournier rapidly distinguished himself as both clinician and teacher, and quickly became Ricord’s star pupil. Fournier’s major dermatological advancements lay in his systematic, clinicopathological approach to syphilis. He helped establish the triphasic classification of syphilis still used today and was among the first to recognize the contagiousness of secondary lesions. His landmark Traité de la Syphilis (1898) is celebrated for its extraordinarily precise and almost literary descriptions of primary syphilitic lesions, allowing clinicians to ‘see’ disease through text alone. He also made enduring contributions beyond the skin, proposing the syphilitic origin of tabes dorsalis and other neuropsychiatric disorders, thereby linking dermatology, neurology and psychiatry. Numerous eponyms bear his name, most notably Fournier’s gangrene. In honour of the English syphilologist Sir Johnathan Hutchinson, Fournier amicably named the triad seen in congenital syphilis of notched teeth, interstitial keratitis and sensorineural deafness after his esteemed colleague. After his death in 1914, Fournier’s legacy continued to shape modern dermatology and venereology. More than a century after his death, the Institut Alfred Fournier in Paris still provides care specializing in the screening and treatment of sexually transmitted diseases, cementing his legacy among the pioneers of dermatology.