This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumors, Subject name: ENT
Phelps sign is seen in : 
Select and explain. 
A. Glomus jugulare, B. Vestibular shwanoma, C. Menniers disease, D. Neurofibromatosis
A: Glomus jugulare
Answer: A: Glomus jugulare 
Explanation: Ans. is 'a' ie Glomus jugulare " The absence of the normal crest of bone between the carotid canal and jugular fossa on lateral tomography is virtually diagnostic of a glomus jugulare tumor. This is k/a Phelps' sign." - Scott-Brown, 5/e