[Frey's syndrome: report of three cases with two distinct etiopathogeneses].

Frey's syndrome is characterized by recurrent episodes of facial gustatory flushing and sweating (most frequent in adults) limited to the cutaneous distribution of the auriculotemporal nerve which, when injured, shows abnormal regeneration. The condition is relatively common in adults following nerve injury in parotid surgery but has rarely been reported in children as a sequel of perinatal birth trauma resulting from forceps assisted delivery. We report three patients with the same syndrome and two different causes.