Rabid (1977) I just discovered this one, not eighties but close enough ...a must for any Horror or Cronenberg fan !!
David Cronenberg and Marilyn Chambers !! A little known Gem ........After undergoing radical surgery for injuries from a motorcycle accident a young woman (former adult film star Marilyn Chambers) develops a strange phallic growth on her body and a thirst for human blood -- the only nourishment that will now sustain her. Her victims become zombies. Out of print but Available here