Trotter's triad includes all except
Sensory disturbance over distribution of the 5th cranial nerve
Diplopia
Conductive deafness
Palatal Palsy
Nasopharyngeal cancer can cause conductive deafness (eustachian tube blockage), ipsilateral temporoparietal neuralgia (involvement of CN V) and palatal paralysis (CN X)-- collectively called Trotter's triad. (Ref: Diseases of Ear, Nose and Throat, P.L Dhingra, 7th edition, page 285)
Pharynx