Ipsilateral paralysis of the 9th, 10th, 11th, 12th, and sometimes the 7th cranial nerves and the cervical sympathetic fibers. It is caused by a lesion in the posterior retro-parotid space. The signs and symptoms include paralysis and anesthesia of the pharyngeal area with difficulty swallowing; loss of taste sensation in the posterior third of the tongue; paralysis of the vocal cords and the sternocleidomastoid and trapezius muscles; and Horner’s syndrome.