Parotid Gland Tumors and the Facial Nerve.

Various types of parotid gland tumors are discussed from nonneoplastic to both benign and malignant neoplasms. The anatomic relationship of the facial nerve is discussed as it exits the stylomastoid foramen and courses through the parotid gland. The effect of certain tumors on facial nerve function is also characterized. Details on which types of parotid tumors are more likely to affect facial nerve function and different prognostic predictors of return to function are evaluated. In addition, the prognostic value of tumor size and histologic type of parotid tumor is included.