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can it be a facial nerve??? with lateral head trauma (injury during passage through middle ear, or external auditory canal??) doubt!!!
Olfaction is actually more important that tongue sensation in terms of food taste (think of how food tastes bland when you have a cold)
If taste is completely lost then it's an olfactory issue. If its lost only on a part of the tongue then the nerve that provides taste to that area is suspected.
UWorld QID 12227
The sense of taste isn't lost due to CSF in the nose, but due to avulsion of olfactory rootlets.
yeah i wanted something to do with chorda tympani but i guess its something to remember