Before his tales of naked Russian mobsters, retired small town thugs and dangerous methods of psychotherapy, David Cronenberg was the master of creepy, often rather gross, body terror films.
Here is a ranked list of some of his best work from the late 1970's and 1980's.
3.) The Dead Zone
4.) The Fly
6.) The Brood
Honorable Mention... should go to eXistenZ
Some are better than others, but all are must-see for genre film lovers.