Lentiform Fork Sign: Neuroradiologic Features and Differential Diagnosis

Dear Editor, A 56-year-old female was admitted with dizziness and not recognizing surrounding people for 10 days. Total blood count, biochemical, hormonal and metabolic tests performed 10 days previously were normal. After the initiation of her symptoms, piracetam 1800 mg/d and betahistine 48 mg/d were started. The patient was admitted to our clinic because her symptoms did not improve. She had no history of chronic disease and was taking no medication. She was stuporous and her cooperation was limited.