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: ENT
A 55 years old female presents with tinnitus, dizziness and h/o progressive deafness, differential diagnosis includes all except - 
Select and explain. 
A. Acoustic neuroma, B. Endolymphatic hydrops, C. Meningioma, D. Histiocytosis - X
D: Histiocytosis - X
Answer: D: Histiocytosis - X 
Explanation: None