<prompt> Facial nerve palsy can be caused by ?CholesteatomaMultiple sclerosisMastoidectomyAll of the above  <response>: Ans. is d i.e., All of the above Causes of facial paralysis Central :- Brain abscess, pontine glioma, Polio, multiple sclerosis Intracranial pa cerebellopontine angle :- Acoustic neuroma, meningioma, congenital cholesteatoma, metastatic carcinoma, meningitis Intratemporal pa :- Idiopathic :- Bells palsy, Melkerssons syndrome Infections :- ASOM, CSOM, Herpes zoster oticus, malignant otitis externa Trauma :- Surgical mastoidectomy, stapedectomy, accidental fractures of temporal bone Neoplasms :- Malignancies of external and middle ear, glomus jugular, facial nerve neuroma, metastasis from breast, lung etc. Extracranial pa :- Malignancies or surgery or injury to parotid gland Systemic diseases :- Diabetes, hypothyroidism, uremia, PAN, Sarcoidosis Heerfordts syndrome, leprosy, leukaemia, demyelinating disease 