History
The history of the developments and discoveries, which made possible our actual knowledge about macroscopic brain white matter anatomy, is very rich. Several prominent philosopher and scientist contributed to it: Galenus, Piccolomini, Malpighi, Varolio, Willis, Steno, Vieussens, Vicq d’Azyr, Reil, Gall, Burdach, Meynert, Mayo, Arnold, Foville, Gratiolet to name only some of them.
In the XIXth century, however, there was a radical shift in focus. The interest of most scientists shifted from the macroscopic to the microscopic anatomy of the white matter of the human brain, so that the technique of dissecting the white matter was mostly only used for didactic purposes in the 20th century. In the 1930s, Mr. Klingler, an anatomical demonstrator in Prof. Ludwig’s anatomical laboratory in Basel, developed a special interest and talent for dissecting white matter.
His aim was to provide students at the University of Basel with three-dimensional models that would “free students from the work of mentally reconstructing structures after looking at numerous sections, a task that is all too often unsuccessful”. He also slightly altered the dissection protocol by routinely freezing brain samples, a detail he had picked up from his time in Vienna in Prof. Pernkopf’s anatomy lab.
Mr. Klingler’s talent resulted in a remarkable atlas of dissection of white matter fibers: the “Atlas cerebri humani”, which is still unsurpassed today in terms of detail and perfection of execution. Several students were able to benefit from Mr. Klingler’s talent, including the young Professor Yaşargil, who visited Prof. Ludwig’s laboratory for three months in the 1940s and then regularly called on Mr. Klingler to show him his improvements in preparation technique, usually receiving the reply: “You are getting better and better…”.
In the second half of the 20th century, the technique fell into oblivion and only a few studies appeared in the medical literature. In the 1990s, one of the young neurosurgeons who visited Professor Yaşargil in Zurich was amazed by the beauty and perfection of the dissected specimens that Professor Yaşargil kept in his office. At Professor Yaşargil’s suggestion, he then visited the Anatomical Museum in Basel to admire Mr. Klingler’s original specimens. This young colleague, now Professor Ugur Türe, then published a paper in 2000 in which he explained step by step how to perform the lateral dissection of a brain. This work represents a milestone in the history of white matter dissection and aroused enormous interest in this topic in the scientific community.
Professor Niklaus Krayenbühl then learned the technique from Prof. Yaşargil himself and from Professor Türe and in 2008 founded the course to revive the tradition of white matter dissection in Zurich and in Europe.
Honored Guests
Mustafa Baskaya, Stephanie Forkel, Pablo Gonzalez Lopez, Paulo Kadri, Nupur Pruthi, Karl Schaller, Uğur Türe