This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
All are features of benign intracranial hypeension except: 
Select and explain. 
A. Proptosis, B. Normal size ventricles, C. Headache, D. Papilledema
A: Proptosis
Answer: A: Proptosis 
Explanation: Ans: A. ProptosisProptosis is not seen in benign intracranial hypeension.Characteristic features of Pseudotumor Cerebri:Elevated intracranial pressure (intracranial hypeension) with normal or small sized ventricular system.No focal neurological sign.Papilledema (enlarged blind spot in visual fluid).Normal CSF findingNormal CT scanMRI & isotope brain scansExcessive slow-wave activity on ECO2.