I read from dissect to dissentious.

Andreas Vesalius is the one I was trying to think of but I think there are other similar people. 

https://en.wikipedia.org/wiki/Andreas_Vesalius

I had to look it up so I guess there have been a couple "dissector" characters in pop culture

https://near-pure-evil.fandom.com/wiki/Johness

https://www.deviantart.com/whiterabbitver2/art/Xandrad-the-dissector-Green-Lantern-villain-OC-867641744 ...