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ePaper created 2014-09-15, 12:31:02 | version 1.32.01
History It was not until 1929 that dermatovenereology was recognized as an independent specialism within Leiden University. Before 1911 dermatovenereology was included within the department of medicine and afterwards in the department of surgery. In 1911 a lectureship for dermatology and venereal diseases was instituted within the department of surgery, and Dr. J.H.P. Kerkhoff (1863-1937), who had received his dermatological training in Unna’s department in Hamburg, was appointed. He accepted this position, which he held until his retirement in 1928, with the inaugural speech ‘Syphilis as disease of tropical descent’. In 1929 dermatovenereology finally became a separate specialism. Hermann Werner Siemens In 1929 Hermann Werner Siemens (1891-1969) was appointed the first professor in dermatology and venereology at Leiden University, and became chair of the new dermatology department within the Academic Hospital Leiden. Siemens was born in 1891 in Berlin-Charlottenberg and received his dermatological training in Breslau (Jadassohn) and Munich (von Zumbusch). In 1923 he was appointed as private tutor and in 1927 as extraordinary professor in dermatology and venereal diseases at the University of Munich. In 1924 he published a book on Twin Pathology (‘Zwillingspathologie’) and became considered one of the pioneers in twin studies. In Leiden he continued his research on genoder- matoses including congenital ichthyosiform dermatoses and incontinentia pigmenti, and several of these conditions were named after him.[1] In addition, he introduced controlled clinical trials comparing therapeutic efficacy of topical agents versus controls applied at different body sides (method of paired comparisons).[2] He retired in 1962. 80 Ichthyosis bullosa of Siemens. BWEADVSMGFINCORR:Opmaak 1 21-07-2014 17:40 Pagina 80