Diagnosis of dizziness of central origin remains a challenge, especially when a dizzy patient visits the outpatient clinic. Recently, we experienced 3 cases of central causes in outpatient otolaryngology clinic. (1) An 37-year-old woman complaint floating dizziness lasting for 10 months. At the first attack of dizziness, she admitted in other hospital and got brain MRI, which did not reveal any pathologic finding. Temporal MRI showed a intracanalicular shwannoma of left ear. (2) An 70-year-old man with hypertension complaint lightheadness, dysequilibrium and tilting sensation, which developed suddenly two days ago. He told that his left hearing was not good for a long time. Brain MRI showed an extraaxial mass at left prepontine cistern, which compresses left pons. (3) An 52-year-old man with DM and hypertension complaint relapsing dizziness lasting for about a half hour 2-3 times a day. Its nature was lightheadness and presyncope, which developed suddenly together with left tinnitus a half month ago. He complaint that his vision was blurred during dizziness attack. Brain MRI showed left tortuous distal vertebral artery compressing medulla oblongata.