This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
X-ray finding in cholesteatoma is 
Select and explain. 
A. Honeycombing of mastoid, B. Sclerosis with cavity in mastoid, C. Clear cut distinct bony paition between cells, D. None of the above
B: Sclerosis with cavity in mastoid
Answer: B: Sclerosis with cavity in mastoid 
Explanation: X-ray mastoids (Schuller&;s view) is done in CSOMIt may show cellular or sclerotic pattern in tubotympanic CSOMIn cholesteatoma, Sclerosis with a cavity may be seen.Differential diagnosis of a cavity on mastoid X-ray:1. Mega antrum2.Post mastoidectomy cavity3.Cholesteatoma4.Multiple myeloma5.Tuberculosis6.Cholesterol granulomaRef: Hazarika; 3rd ed; Pg 158