What will be the most likely diagnosis in a 70 year old male with hypo-aesthesia of external auditory meatus (Histelberg's sign positive)?
Hitzelberg's sign refers to hypo-aesthesia of the posterosuperior aspect of the external meatus. It is due to involvement of nervus intermedius (sensory root of VIIth nerve).
Mastoiditis
Bells palsy
Vestibular schwannoma
Middle ear cholesteatoma
Vestibular schwannoma