Fig 4.

A, A 70-year-old woman with a large right parotid oncocytoma. The large tumor (white asterisk) extends medially through the stylomandibular gap into the parapharyngeal space and demonstrates a nonenhancing curvilinear cleft (black arrow). B, Synchronous bilateral parotid oncocytomas in another 70-year-old woman. CT demonstrates tumors in the right parotid gland (white asterisks), which show homogeneous enhancement, and a large left parotid tumor (black asterisk) with a nonenhancing curvilinear cleft (black arrow).