<prompt> Most common nerve to be damaged in CSOM is -IIIVIIIIIVI  <response>: Ans. is b i.e., VII o Facial nerve is the most commonly involved cranial nerve as a complication of CSOM.Complications of otitis mediaa. Extracranial complicationsb. Intracranial complicationso Mastoiditiso Meningitiso PetrositisGradenigo syndromeo Extradural abscesso Facial paralysiso Subdural abscesso Labyrinthitiso Otogenic Brain Abscesso Osteomyelitis of temporal boneo Lateral sinus thrombophlebitiso Septicaemia or pyaemiao Otitic hydrocephalus 