This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumors of Ear, Subject name: ENT
Pulsatile tinnitus in ear is due to: 
Select and explain. 
A. Malignant otitis media, B. Osteoma, C. Mastoid reservoirs, D. Glomus jugulare tumour
D: Glomus jugulare tumour
Answer: D: Glomus jugulare tumour 
Explanation: (d) Glomus jugulare tumour(Ref. Scott Brown, 8th ed., Vol 2 page 1283)For the tinnitus to be pulsatile the cause has to be vascular. Vascular causes to tinnitus are Glomus jugulare and internal carotid aneurysms.