Medical facilities were established in a line, as it were - platoon and company first-aid (usually individual aidmen); battalion and regimental aid stations; field hospitals, general hospitals, etc. - extending all the way back to the U. S. Casualties were evacuated to whatever point along the line considered best equipped to provide effective treatment according to extent and severity of injuries, etc. Your man's injuries were apparently deemed serious enough to warrant evacuation at least to a general hospital in North Africa. If he hadn't died, he may well have gone all the way back to the U. S. (if not, after sufficient convalescence he'd have been sent back to Italy). His deceased file should outline his injuries.