Yes, the definitely can be malignant, I was just saying that not all of them are. I am not aware of any studies linking the exact position of the tumor within the gland with mortality, but there may be correlation. What is more important is the size of the tumor, how soon it is caught, and whether or not it presents with pain or other neurological issues. If the nerves are already involved, the prognosis is less positive,
but the majority of parotid cancers can be cured with surgical intervention, and sometimes post-operative radiation.