Frey's syndrome after carotid endarterectomy (CEA) is due to iatrogenic inj
ury to the auriculotemporal nerve and has not been previously reported. One
month after uncomplicated CEA, our patient noted an erythematous Rush and
copious drainage of clear fluid from the superior portion of his neck wound
whenever he ate, or smelled or thought of food. These symptoms lasted for
2 months and eventually resolved without intervention. The cause and treatm
ent of Frey's syndrome is also described.