Italian is also known as Cane Corso. huge difference. They came from Tibetan Mastiffs .
The Dogue's history is believed to predate the Bullmastiff and the Bulldog. It is said that the Dogue can be found in the background of the Bullmastiff, and others claim that the Dogue and Mastiff breeds were both being accomplished at the same time. Some believe that the Bulldog is the building block of the Dogue, and again, another group believes that the Bulldog was used in breeding programs further down the line
More difference you can search on Net