First submission on 16/01/13; last submission on 02/08/13; accepted for publication on 05/08/13; published on 20/10/13 1. Doctorate in Clinical Surgery from Universidade Federal do Paraná (UFPR); pathologist at Hospital Erasto Gaertner. 2. Doctorate in Pathology from Mie University, Japan; associate professor at UFPR and Pontifícia Universidade Católica do Paraná (PUC-PR); pathologist at Hospit...