Charles Jacques Bouchard

Charles Jacques Bouchard (6 September 1837 – 28 October 1915) was a French pathologist and an esperantist born in Montier-en-Der, a commune the department of Haute-Marne.

It is described as a small aneurysm on cerebral perforated vessels that could be the cause of intracranial hemorrhages.

Bouchard wrote about the aneurysm in his doctorate thesis Étude sur quelques points de la pathogénie des hémorrhagies cérébrales.

[1] His name is also lent to the eponymous "Bouchard's nodes", which are bony outgrowths of the proximal interphalangeal joints, and are a sign of osteoarthritis.

He was the author of Traité de Pathologie Générale, a compendium of medical pathology, and also "Lectures on Auto-Intoxication in Disease, or Self-Poisoning of the Individual".