<prompt> A patient with ho right ear discharge undergoes mastoidectomy but now he presents with vertigo and deafness. Diagnosis is:LabyrinthitisThrombophlebitisTemporal lobe abscessMastoiditis  <response>: a LabyrinthitisRef. Cummings, 6th ed., 2169Following mastoidectomy deafness along with vertigo is suggestive of labyrinthitis. 