headache, 158 infections, 157 Ménière disease, 159 migraine, 157 –158 motion sickness, 159 ototoxic drugs, 158 seizures, 158 trauma, 158 evaluation and decision, 159 –160 , 160 f ancillary tests, 160 history and physical examination, 159 –160 laboratory investigations, 160 management, 160 –161 medications, 161 pathophysiology, 157 posttraumatic, 158 vestibular system and, 157 Vesicles, 646 –647 Vesicular eruptions, 459 –461 Vesiculobullous (blistering) disorders, 445 –450 Vestibular concussion, 158 Vestibular neuronitis, 157 ViaSpan, 1109 Vibrio vulnificus , 440 Vicarious menstruation, 166 Video-assisted thoracoscopic surgery (VATS), 1407 Video laryngoscopes, 38 Vinblastine, 927 Vincent angina, 350 Vincristine, 927 Viral adenitis, 307 Viral conjunctivitis, 174 Viral croup, 479 Viral encephalitis, 891 , 891 t Viral gastroenteritis, 553 Viral myositis, 329 , 560 Viral respiratory tract infection, 948