Josef Jadassohn

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See also Salomon Jadassohn, Jadassohn.

Joseph(Josef) Jadassohn (September 10, 1863, Liegnitz - March 24, 1936, Zurich) was a German dermatologist. He was an assistant to Albert Neisser at the Allerheiligen-Hospital in Breslau until 1892, the director of the university skin clinic in Bern (1896-1917), and later a professor of dermatology at Breslau University (1917-1932).

He is renowned for being a pioneer in the field of allergology. He was one of first physicians to use immunological techniques in studying dermatological disorders,and made several contributions in the understanding of the immunopathology of tuberculosis and trichophytosis. Two of the several dermatological diseases named after him are: Jadassohn's disease I (a skin disorder originating at the elbow} and Jadassohn's disease II (a natal skin disorder affecting the face and scalp).

He is best remembered today for a monumental 24-volume opus which he began publication of in 1927. It is called the Handbuch für Haut- und Geschlechtskrankheiten and contains all knowledge of dermatology known up to that point in time.