Another angle: "anal" could relate to the anal region in anatomy, so "comatozze anal" might be a reference to a condition involving coma and the anal area. But medically, comatose states are generally about loss of consciousness, not specific body parts. Unless there's a medical condition where a comatose person has certain anal symptoms? That seems unlikely. Alternatively, maybe it's a mistranslation or a term from a fanfic or fictional context.