A 54-year-old woman with acute-onset nausea and vomiting presented to outpatient clinic. She had headache for 3 weeks. Past medical story revealed that she had been treated for sinusitis one year ago. Her quick blood work demonstrated high sedimentation only. She had difficulty during tandem gait and tended to fall to the right. Otherwise, her neurological examination (pupils, fundoscopy, search of any pathological reflex, search of neck stiffness, skew deviation, mental status, coordination, muscle strength, and examination of other cranial nerves) was normal. She had normal hearing (Figure 1). She was subjected to videonystagmographic (VNG) analysis which revealed spontaneous nystagmus beating to the left (MicroMed, Inc., Chatham, IL, USA). However, optical suppression was documented following presentation of visual target. Positional tests were normal. Smooth pursuit, optokinetic test, and sinusoidal tracking were abnormal. Vestibular evoked myogenic potentials (VEMPs) were depressed on the right side. But, comparison of both sides was within normal limits (Eclipse EP25, Interacoustics, USA) (Figure 2). She was unable to overcome the video head impulse test (VHIT). However, she had horizontal and slightly down-beating gaze-evoked nystagmus while looking to the right and left (video; gaze to the right: torsional nystagmus (upper pole to the right), with downward vertical component and gaze to the left: torsional nystagmus (upper pole to the left), with downward vertical component ()). Magnetic resonance imaging (MRI) at T2 showed hyperintense widespread inflammatory gliosis of the right temporal lobe of the brain, and temporal bone computerized tomography (CT) showed isolated destruction of the right superior semicircular canal (Figures 3(a)-3(c), 4(a), and 4(b)). Inflammatory edema was extending deeply along the right side of the brain anterior to the cerebellum as seen on MRI. Linear dural contrast enhancement adjacent to the temporal lobe was seen throughout the right tegmen. Cerebrospinal fluid (CSF) sample analysis for infection including tuberculosis was negative. However, the patient was hospitalized and treated with combined antibiotics. Caloric testing 3 days after hospitalization showed slightly decreased response on the right, but overall analysis was within normal limits. She had remarkable recovery within 3 weeks. Her VHIT was normal 3 weeks after treatment.