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No Drug Is Benign

along nerves, in our experience and in the current study, adenoid cystic carcinoma is the most common traveler along the perineural pathway. These tumors arise in salivary glands both major and minor as well as in the lacrimal glands. Neural connections from these areas are of obvious importance. The foramen ovale and the stylomastoid foramen are the key transit points from the parotid. The highest concentration of minor salivary glands in the body is in the posterior roof of the mouth, and adenoid cystic carcinoma frequently originates in this location. The pterygopalatine fossa becomes an extremely important landmark as shown in the current article. The anatomy of the head and neck is indeed complex. Following neural pathways through the region can be an arduous task. Demonstration of an enlarged foramen, an enhancing nerve, or an enlarged cavernous sinus is indeed ominous. The fat planes adjacent to the skull base are equally important and deserve the same understanding and scrutiny. Indeed, when searching for perineural tumor spread, as in many situations in head and neck imaging, fat is truly a friend.