Paolo Mascagni (1752 - 1815). Anatomist. Took the chair as professor of Anatomy at the University of Pisa. Taught also at Bologna, Padua and Florence. Mainly studied lymphatic vessels and wrote a work on these in 1787 ("Vasorum lymphaticorum corporis humani historia et iconographia"). He was the first to observe the phenomenon of red cell diapedesis (insinuation of red cells through vessel walls during inflammation). He wrote two textbooks, published posthumously, for students of anatomy: "Prodromo della grande anatomia" [General introduction to anatomy] (1821) and "Anatomicae universae iconae" (1823).