Julius Friedrich Cohnheim

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Cohnheim, Julius Friedrich

 

Born July 20, 1839, in Demmin, Pomerania; died Aug. 15, 1884, in Leipzig. German pathologist.

Cohnheim studied medicine at the universities of Würzburg, Marburg, Greifswald, and Berlin. In 1864 he was an assistant to R. Virchow. Cohnheim was professor of pathological anatomy at Kiel from 1868, Breslau (now Wroclaw) from 1872, and Leipzig from 1878 to 1884. His principal work was a manual in general pathology, in which he set forth a theory of the origin of tumors (”Cohnheim’s embryonic theory”). According to this theory, tumors are formed from embryonic rudiments that remain unutilized during the origin and growth of the embryo; subsequently, when the life processes of surrounding tissues slacken, these cells, in Cohnheim’s opinion, begin to reproduce intensively. He eleborated a vascular theory of inflammation and a theory concerning the terminal arteries (vessels) and the pathogenesis of an infarct. Cohnheim’s works greatly influenced the development of pathology.

WORKS

Obshchaia patologiia, vols. 1–2. St. Petersburg, 1878–81.
Bugorchatka s tochki zreniia infektsionnoi teorii. St. Petersburg, 1880.

REFERENCE

Serov, V. “Iulius Fridrikh Kongeim (K 75-letiiu so dnia smerti).” Arkhiv patologii, 1959, vol. 21, no. 9.
References in periodicals archive ?
He had the opportunity to work with the famous physiologist Karl Ludwig in Leipzig and the experimental pathologist Julius Cohnheim in Breslau, working at their side and absorbing the lessons these early experimentalists had to teach.
Cohn and Cohnheim arranged an appointment for Koch at Breslau, but Koch returned to Wollstein in a short time.
Ludwig was so hot against Virchow that he persuaded Welch to go to Cohnheim instead.
Returning to Breslau, Ehrlich was impressed by several outstanding histologists, physiologists, pathologists, and bacteriologists, including Weigert, Julius Cohnheim, Rudolf Heidenhain, and Ferdinand Cohn.
In contrast to Mencken, who was self-educated beyond graduation from the Baltimore Polytechnic, Welch undertook his education at Yale and then in Germany, where his study included stints in the laboratories of the experimental pathologist Julius Cohnheim and of the bacteriologist Robert Koch.