<prompt> Gradenigo;s syndrome is characterized by all exceptRetro orbital painAbducent nerve involvementConductive deafnessPositive Griesinger sign  <response>: Gradenigos syndrome 1.Mastoid air cells responsible for Gradenigos syndrome - petrous apex cells2.Triad - persistent ear discharge, external rectus palsy 6thnerve palsy and retro orbital pain 7thnerve involvement3.Seen in petrositis, a complication of CSOM4.Eagleton, Almoor, Ramadier Frenker surgeries for draining petrositis abscessesRefer: PL Dhingra, Textbook of Ear, Nose, Throat, 6thedition, pg no: 79 