Chiari, Hans (1851–1916),
Austrian pathologist. Chiari served as a professor of pathological anatomy first at the University of Prague and from 1906 at the University of Strasbourg. Most of his research and writings, of which there are more than 177, were the result of his postmortem examinations. In the 1890s he described a condition in children involving deformities of the cerebellum and brainstem, with herniation of the spinal cord. The condition is sometimes associated with his name alone and sometimes jointly with the name of Julius Arnold.