Brown's sign is seen In: (A) Glomus tumour, (B) Meniere's disease, (C) Acoustic neuroma, (D) Otosclerosis
Answer is A. Brown's sign, also called pulsation sign, is seen in glomus tumour. When pressure is raised in the ear canal with a Siegel's speculum, tumour first pulsates vigorously and then blanches; reverse occurs when pressure is released.